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Finding the Fourth Proportional to 627,900.52, 866,823.78 and 484,338.28

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Solution

The fourth proportional to 627,900.52, 866,823.78 and 484,338.28 is: 668,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,900.52 : 866,823.78 = 484,338.28 : x
  2. Step 2: Convert to fraction form
    627,900.52/866,823.78 = 484,338.28/x
  3. Step 3: Cross multiply
    627,900.52x = 866,823.78 × 484,338.28
  4. Step 4: Simplify right side
    627,900.52x = 419,835,938,668.30
  5. Step 5: Solve for x
    x = 419,835,938,668.30/627,900.52
  6. Step 6: Final answer
    x = 668,634.48

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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.