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Finding the Fourth Proportional to 636,277.34, 878,010.50 and 374,591.10

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Solution

The fourth proportional to 636,277.34, 878,010.50 and 374,591.10 is: 516,904.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,277.34 : 878,010.50 = 374,591.10 : x
  2. Step 2: Convert to fraction form
    636,277.34/878,010.50 = 374,591.10/x
  3. Step 3: Cross multiply
    636,277.34x = 878,010.50 × 374,591.10
  4. Step 4: Simplify right side
    636,277.34x = 328,894,917,133.60
  5. Step 5: Solve for x
    x = 328,894,917,133.60/636,277.34
  6. Step 6: Final answer
    x = 516,904.97

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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.