Home / 1,152,628.08-1,590,480-643,351.92

Finding the Fourth Proportional to 1,152,628.08, 1,590,480 and 643,351.92

Calculator

Solution

The fourth proportional to 1,152,628.08, 1,590,480 and 643,351.92 is: 887,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,628.08 : 1,590,480 = 643,351.92 : x
  2. Step 2: Convert to fraction form
    1,152,628.08/1,590,480 = 643,351.92/x
  3. Step 3: Cross multiply
    1,152,628.08x = 1,590,480 × 643,351.92
  4. Step 4: Simplify right side
    1,152,628.08x = 1,023,238,361,721.60
  5. Step 5: Solve for x
    x = 1,023,238,361,721.60/1,152,628.08
  6. Step 6: Final answer
    x = 887,743.74

Related Problems

Find fourth proportional to 576,314.04, 795,240 and 321,675.96
Half scale
Find fourth proportional to 2,305,256.16, 3,180,960 and 1,286,703.84
Double scale
Find fourth proportional to 1,152,629.08, 1,590,481.38 and 643,352.92
Similar ratio
Find fourth proportional to 1,728,942.12, 2,385,720 and 965,027.88
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.