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Finding the Fourth Proportional to 636,365.62, 878,188.02 and 374,732.28

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Solution

The fourth proportional to 636,365.62, 878,188.02 and 374,732.28 is: 517,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,365.62 : 878,188.02 = 374,732.28 : x
  2. Step 2: Convert to fraction form
    636,365.62/878,188.02 = 374,732.28/x
  3. Step 3: Cross multiply
    636,365.62x = 878,188.02 × 374,732.28
  4. Step 4: Simplify right side
    636,365.62x = 329,085,399,003.29
  5. Step 5: Solve for x
    x = 329,085,399,003.29/636,365.62
  6. Step 6: Final answer
    x = 517,132.59

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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.