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Finding the Fourth Proportional to 669,704.50, 924,160.82 and 379,309.17

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Solution

The fourth proportional to 669,704.50, 924,160.82 and 379,309.17 is: 523,428.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,704.50 : 924,160.82 = 379,309.17 : x
  2. Step 2: Convert to fraction form
    669,704.50/924,160.82 = 379,309.17/x
  3. Step 3: Cross multiply
    669,704.50x = 924,160.82 × 379,309.17
  4. Step 4: Simplify right side
    669,704.50x = 350,542,671,684.17
  5. Step 5: Solve for x
    x = 350,542,671,684.17/669,704.50
  6. Step 6: Final answer
    x = 523,428.87

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1.5x scale

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.