Home / 807,785.60-1,128,688-807,785.60

Finding the Fourth Proportional to 807,785.60, 1,128,688 and 807,785.60

Calculator

Solution

The fourth proportional to 807,785.60, 1,128,688 and 807,785.60 is: 1,128,688

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,785.60 : 1,128,688 = 807,785.60 : x
  2. Step 2: Convert to fraction form
    807,785.60/1,128,688 = 807,785.60/x
  3. Step 3: Cross multiply
    807,785.60x = 1,128,688 × 807,785.60
  4. Step 4: Simplify right side
    807,785.60x = 911,737,913,292.80
  5. Step 5: Solve for x
    x = 911,737,913,292.80/807,785.60
  6. Step 6: Final answer
    x = 1,128,688

Related Problems

Find fourth proportional to 403,892.80, 564,344 and 403,892.80
Half scale
Find fourth proportional to 1,615,571.20, 2,257,376 and 1,615,571.20
Double scale
Find fourth proportional to 807,786.60, 1,128,689.40 and 807,786.60
Similar ratio
Find fourth proportional to 1,211,678.40, 1,693,032 and 1,211,678.40
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.