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Finding the Fourth Proportional to 508,901.70, 763,352.55 and 459,135.30

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Solution

The fourth proportional to 508,901.70, 763,352.55 and 459,135.30 is: 688,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,901.70 : 763,352.55 = 459,135.30 : x
  2. Step 2: Convert to fraction form
    508,901.70/763,352.55 = 459,135.30/x
  3. Step 3: Cross multiply
    508,901.70x = 763,352.55 × 459,135.30
  4. Step 4: Simplify right side
    508,901.70x = 350,482,102,050.02
  5. Step 5: Solve for x
    x = 350,482,102,050.02/508,901.70
  6. Step 6: Final answer
    x = 688,702.95

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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.