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Finding the Fourth Proportional to 645,522.66, 966,414.14 and 486,269.30

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Solution

The fourth proportional to 645,522.66, 966,414.14 and 486,269.30 is: 727,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,522.66 : 966,414.14 = 486,269.30 : x
  2. Step 2: Convert to fraction form
    645,522.66/966,414.14 = 486,269.30/x
  3. Step 3: Cross multiply
    645,522.66x = 966,414.14 × 486,269.30
  4. Step 4: Simplify right side
    645,522.66x = 469,937,520,104.49
  5. Step 5: Solve for x
    x = 469,937,520,104.49/645,522.66
  6. Step 6: Final answer
    x = 727,995.39

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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.