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Finding the Fourth Proportional to 627,668.45, 866,599.52 and 482,215.13

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Solution

The fourth proportional to 627,668.45, 866,599.52 and 482,215.13 is: 665,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,668.45 : 866,599.52 = 482,215.13 : x
  2. Step 2: Convert to fraction form
    627,668.45/866,599.52 = 482,215.13/x
  3. Step 3: Cross multiply
    627,668.45x = 866,599.52 × 482,215.13
  4. Step 4: Simplify right side
    627,668.45x = 417,887,393,450.66
  5. Step 5: Solve for x
    x = 417,887,393,450.66/627,668.45
  6. Step 6: Final answer
    x = 665,777.29

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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.