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Finding the Fourth Proportional to 636,470.92, 878,352.42 and 350,013.16

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Solution

The fourth proportional to 636,470.92, 878,352.42 and 350,013.16 is: 483,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,470.92 : 878,352.42 = 350,013.16 : x
  2. Step 2: Convert to fraction form
    636,470.92/878,352.42 = 350,013.16/x
  3. Step 3: Cross multiply
    636,470.92x = 878,352.42 × 350,013.16
  4. Step 4: Simplify right side
    636,470.92x = 307,434,906,117.85
  5. Step 5: Solve for x
    x = 307,434,906,117.85/636,470.92
  6. Step 6: Final answer
    x = 483,030.56

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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.