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Finding the Fourth Proportional to 636,227.46, 878,014.89 and 349,759.62

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Solution

The fourth proportional to 636,227.46, 878,014.89 and 349,759.62 is: 482,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,227.46 : 878,014.89 = 349,759.62 : x
  2. Step 2: Convert to fraction form
    636,227.46/878,014.89 = 349,759.62/x
  3. Step 3: Cross multiply
    636,227.46x = 878,014.89 × 349,759.62
  4. Step 4: Simplify right side
    636,227.46x = 307,094,154,280.74
  5. Step 5: Solve for x
    x = 307,094,154,280.74/636,227.46
  6. Step 6: Final answer
    x = 482,679.82

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1.5x scale

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.