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Finding the Fourth Proportional to 636,737.88, 878,679.63 and 350,257.80

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Solution

The fourth proportional to 636,737.88, 878,679.63 and 350,257.80 is: 483,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,737.88 : 878,679.63 = 350,257.80 : x
  2. Step 2: Convert to fraction form
    636,737.88/878,679.63 = 350,257.80/x
  3. Step 3: Cross multiply
    636,737.88x = 878,679.63 × 350,257.80
  4. Step 4: Simplify right side
    636,737.88x = 307,764,394,108.61
  5. Step 5: Solve for x
    x = 307,764,394,108.61/636,737.88
  6. Step 6: Final answer
    x = 483,345.51

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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.