Home / 710,511.20-1,065,766.80-615,125.60

Finding the Fourth Proportional to 710,511.20, 1,065,766.80 and 615,125.60

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Solution

The fourth proportional to 710,511.20, 1,065,766.80 and 615,125.60 is: 922,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,511.20 : 1,065,766.80 = 615,125.60 : x
  2. Step 2: Convert to fraction form
    710,511.20/1,065,766.80 = 615,125.60/x
  3. Step 3: Cross multiply
    710,511.20x = 1,065,766.80 × 615,125.60
  4. Step 4: Simplify right side
    710,511.20x = 655,580,442,310.08
  5. Step 5: Solve for x
    x = 655,580,442,310.08/710,511.20
  6. Step 6: Final answer
    x = 922,688.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.