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Finding the Fourth Proportional to 669,658.23, 924,185.50 and 379,321.61

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Solution

The fourth proportional to 669,658.23, 924,185.50 and 379,321.61 is: 523,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,658.23 : 924,185.50 = 379,321.61 : x
  2. Step 2: Convert to fraction form
    669,658.23/924,185.50 = 379,321.61/x
  3. Step 3: Cross multiply
    669,658.23x = 924,185.50 × 379,321.61
  4. Step 4: Simplify right side
    669,658.23x = 350,563,526,229.42
  5. Step 5: Solve for x
    x = 350,563,526,229.42/669,658.23
  6. Step 6: Final answer
    x = 523,496.18

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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.