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Finding the Fourth Proportional to 627,870.60, 866,463.30 and 341,391.80

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Solution

The fourth proportional to 627,870.60, 866,463.30 and 341,391.80 is: 471,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,870.60 : 866,463.30 = 341,391.80 : x
  2. Step 2: Convert to fraction form
    627,870.60/866,463.30 = 341,391.80/x
  3. Step 3: Cross multiply
    627,870.60x = 866,463.30 × 341,391.80
  4. Step 4: Simplify right side
    627,870.60x = 295,803,465,620.94
  5. Step 5: Solve for x
    x = 295,803,465,620.94/627,870.60
  6. Step 6: Final answer
    x = 471,121.70

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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.