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Finding the Fourth Proportional to 627,825.64, 941,717.62 and 272,840

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Solution

The fourth proportional to 627,825.64, 941,717.62 and 272,840 is: 409,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,825.64 : 941,717.62 = 272,840 : x
  2. Step 2: Convert to fraction form
    627,825.64/941,717.62 = 272,840/x
  3. Step 3: Cross multiply
    627,825.64x = 941,717.62 × 272,840
  4. Step 4: Simplify right side
    627,825.64x = 256,938,235,440.80
  5. Step 5: Solve for x
    x = 256,938,235,440.80/627,825.64
  6. Step 6: Final answer
    x = 409,250.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.