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Finding the Fourth Proportional to 636,282.68, 878,047.70 and 349,800.66

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Solution

The fourth proportional to 636,282.68, 878,047.70 and 349,800.66 is: 482,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,282.68 : 878,047.70 = 349,800.66 : x
  2. Step 2: Convert to fraction form
    636,282.68/878,047.70 = 349,800.66/x
  3. Step 3: Cross multiply
    636,282.68x = 878,047.70 × 349,800.66
  4. Step 4: Simplify right side
    636,282.68x = 307,141,663,222.48
  5. Step 5: Solve for x
    x = 307,141,663,222.48/636,282.68
  6. Step 6: Final answer
    x = 482,712.60

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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.