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Finding the Fourth Proportional to 616,691.38, 851,040.46 and 344,774.38

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Solution

The fourth proportional to 616,691.38, 851,040.46 and 344,774.38 is: 475,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,691.38 : 851,040.46 = 344,774.38 : x
  2. Step 2: Convert to fraction form
    616,691.38/851,040.46 = 344,774.38/x
  3. Step 3: Cross multiply
    616,691.38x = 851,040.46 × 344,774.38
  4. Step 4: Simplify right side
    616,691.38x = 293,416,946,951.42
  5. Step 5: Solve for x
    x = 293,416,946,951.42/616,691.38
  6. Step 6: Final answer
    x = 475,792.20

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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.