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Finding the Fourth Proportional to 636,657.41, 878,587.68 and 350,199.29

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Solution

The fourth proportional to 636,657.41, 878,587.68 and 350,199.29 is: 483,275.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,657.41 : 878,587.68 = 350,199.29 : x
  2. Step 2: Convert to fraction form
    636,657.41/878,587.68 = 350,199.29/x
  3. Step 3: Cross multiply
    636,657.41x = 878,587.68 × 350,199.29
  4. Step 4: Simplify right side
    636,657.41x = 307,680,781,738.75
  5. Step 5: Solve for x
    x = 307,680,781,738.75/636,657.41
  6. Step 6: Final answer
    x = 483,275.27

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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.