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Finding the Fourth Proportional to 530,344.55, 731,366.68 and 356,307.95

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Solution

The fourth proportional to 530,344.55, 731,366.68 and 356,307.95 is: 491,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,344.55 : 731,366.68 = 356,307.95 : x
  2. Step 2: Convert to fraction form
    530,344.55/731,366.68 = 356,307.95/x
  3. Step 3: Cross multiply
    530,344.55x = 731,366.68 × 356,307.95
  4. Step 4: Simplify right side
    530,344.55x = 260,591,762,449.11
  5. Step 5: Solve for x
    x = 260,591,762,449.11/530,344.55
  6. Step 6: Final answer
    x = 491,363.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.