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Finding the Fourth Proportional to 636,479.97, 878,348.57 and 350,002

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Solution

The fourth proportional to 636,479.97, 878,348.57 and 350,002 is: 483,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,479.97 : 878,348.57 = 350,002 : x
  2. Step 2: Convert to fraction form
    636,479.97/878,348.57 = 350,002/x
  3. Step 3: Cross multiply
    636,479.97x = 878,348.57 × 350,002
  4. Step 4: Simplify right side
    636,479.97x = 307,423,756,197.14
  5. Step 5: Solve for x
    x = 307,423,756,197.14/636,479.97
  6. Step 6: Final answer
    x = 483,006.18

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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.