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Finding the Fourth Proportional to 461,037, 636,276.42 and 279,734.70

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Solution

The fourth proportional to 461,037, 636,276.42 and 279,734.70 is: 386,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,037 : 636,276.42 = 279,734.70 : x
  2. Step 2: Convert to fraction form
    461,037/636,276.42 = 279,734.70/x
  3. Step 3: Cross multiply
    461,037x = 636,276.42 × 279,734.70
  4. Step 4: Simplify right side
    461,037x = 177,988,592,067.10
  5. Step 5: Solve for x
    x = 177,988,592,067.10/461,037
  6. Step 6: Final answer
    x = 386,061.41

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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.