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Finding the Fourth Proportional to 627,963.72, 866,596.08 and 341,490

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Solution

The fourth proportional to 627,963.72, 866,596.08 and 341,490 is: 471,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,963.72 : 866,596.08 = 341,490 : x
  2. Step 2: Convert to fraction form
    627,963.72/866,596.08 = 341,490/x
  3. Step 3: Cross multiply
    627,963.72x = 866,596.08 × 341,490
  4. Step 4: Simplify right side
    627,963.72x = 295,933,895,359.20
  5. Step 5: Solve for x
    x = 295,933,895,359.20/627,963.72
  6. Step 6: Final answer
    x = 471,259.54

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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.