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Finding the Fourth Proportional to 636,480.47, 878,349.27 and 350,002.50

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Solution

The fourth proportional to 636,480.47, 878,349.27 and 350,002.50 is: 483,006.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,480.47 : 878,349.27 = 350,002.50 : x
  2. Step 2: Convert to fraction form
    636,480.47/878,349.27 = 350,002.50/x
  3. Step 3: Cross multiply
    636,480.47x = 878,349.27 × 350,002.50
  4. Step 4: Simplify right side
    636,480.47x = 307,424,440,373.18
  5. Step 5: Solve for x
    x = 307,424,440,373.18/636,480.47
  6. Step 6: Final answer
    x = 483,006.87

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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.