Home / 1,128,824.80-1,557,779.28-645,400.07

Finding the Fourth Proportional to 1,128,824.80, 1,557,779.28 and 645,400.07

Calculator

Solution

The fourth proportional to 1,128,824.80, 1,557,779.28 and 645,400.07 is: 890,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,824.80 : 1,557,779.28 = 645,400.07 : x
  2. Step 2: Convert to fraction form
    1,128,824.80/1,557,779.28 = 645,400.07/x
  3. Step 3: Cross multiply
    1,128,824.80x = 1,557,779.28 × 645,400.07
  4. Step 4: Simplify right side
    1,128,824.80x = 1,005,390,856,356.55
  5. Step 5: Solve for x
    x = 1,005,390,856,356.55/1,128,824.80
  6. Step 6: Final answer
    x = 890,652.70

Related Problems

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.