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Finding the Fourth Proportional to 627,677, 940,984.80 and 272,423.96

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Solution

The fourth proportional to 627,677, 940,984.80 and 272,423.96 is: 408,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,677 : 940,984.80 = 272,423.96 : x
  2. Step 2: Convert to fraction form
    627,677/940,984.80 = 272,423.96/x
  3. Step 3: Cross multiply
    627,677x = 940,984.80 × 272,423.96
  4. Step 4: Simplify right side
    627,677x = 256,346,805,515.81
  5. Step 5: Solve for x
    x = 256,346,805,515.81/627,677
  6. Step 6: Final answer
    x = 408,405.61

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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.