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Finding the Fourth Proportional to 627,883.92, 866,423.52 and 348,488.46

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Solution

The fourth proportional to 627,883.92, 866,423.52 and 348,488.46 is: 480,882.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,883.92 : 866,423.52 = 348,488.46 : x
  2. Step 2: Convert to fraction form
    627,883.92/866,423.52 = 348,488.46/x
  3. Step 3: Cross multiply
    627,883.92x = 866,423.52 × 348,488.46
  4. Step 4: Simplify right side
    627,883.92x = 301,938,598,192.58
  5. Step 5: Solve for x
    x = 301,938,598,192.58/627,883.92
  6. Step 6: Final answer
    x = 480,882.83

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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.