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Finding the Fourth Proportional to 485,310.70, 727,966.05 and 366,337.90

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Solution

The fourth proportional to 485,310.70, 727,966.05 and 366,337.90 is: 549,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,310.70 : 727,966.05 = 366,337.90 : x
  2. Step 2: Convert to fraction form
    485,310.70/727,966.05 = 366,337.90/x
  3. Step 3: Cross multiply
    485,310.70x = 727,966.05 × 366,337.90
  4. Step 4: Simplify right side
    485,310.70x = 266,681,554,028.30
  5. Step 5: Solve for x
    x = 266,681,554,028.30/485,310.70
  6. Step 6: Final answer
    x = 549,506.85

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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.