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Finding the Fourth Proportional to 616,545.30, 924,380.55 and 279,747.30

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Solution

The fourth proportional to 616,545.30, 924,380.55 and 279,747.30 is: 419,422.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,545.30 : 924,380.55 = 279,747.30 : x
  2. Step 2: Convert to fraction form
    616,545.30/924,380.55 = 279,747.30/x
  3. Step 3: Cross multiply
    616,545.30x = 924,380.55 × 279,747.30
  4. Step 4: Simplify right side
    616,545.30x = 258,592,963,035.02
  5. Step 5: Solve for x
    x = 258,592,963,035.02/616,545.30
  6. Step 6: Final answer
    x = 419,422.49

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1.5x scale

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.