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Finding the Fourth Proportional to 636,449.92, 878,277.28 and 349,952.96

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Solution

The fourth proportional to 636,449.92, 878,277.28 and 349,952.96 is: 482,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,449.92 : 878,277.28 = 349,952.96 : x
  2. Step 2: Convert to fraction form
    636,449.92/878,277.28 = 349,952.96/x
  3. Step 3: Cross multiply
    636,449.92x = 878,277.28 × 349,952.96
  4. Step 4: Simplify right side
    636,449.92x = 307,355,733,836.75
  5. Step 5: Solve for x
    x = 307,355,733,836.75/636,449.92
  6. Step 6: Final answer
    x = 482,922.10

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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.