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Finding the Fourth Proportional to 508,316.38, 763,666.11 and 479,591.62

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Solution

The fourth proportional to 508,316.38, 763,666.11 and 479,591.62 is: 720,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,316.38 : 763,666.11 = 479,591.62 : x
  2. Step 2: Convert to fraction form
    508,316.38/763,666.11 = 479,591.62/x
  3. Step 3: Cross multiply
    508,316.38x = 763,666.11 × 479,591.62
  4. Step 4: Simplify right side
    508,316.38x = 366,247,866,834.00
  5. Step 5: Solve for x
    x = 366,247,866,834.00/508,316.38
  6. Step 6: Final answer
    x = 720,511.64

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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.