Home / 690,770.10-1,036,155.15-410,142.90

Finding the Fourth Proportional to 690,770.10, 1,036,155.15 and 410,142.90

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Solution

The fourth proportional to 690,770.10, 1,036,155.15 and 410,142.90 is: 615,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,770.10 : 1,036,155.15 = 410,142.90 : x
  2. Step 2: Convert to fraction form
    690,770.10/1,036,155.15 = 410,142.90/x
  3. Step 3: Cross multiply
    690,770.10x = 1,036,155.15 × 410,142.90
  4. Step 4: Simplify right side
    690,770.10x = 424,971,678,070.94
  5. Step 5: Solve for x
    x = 424,971,678,070.94/690,770.10
  6. Step 6: Final answer
    x = 615,214.35

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Similar ratio
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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.