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Finding the Fourth Proportional to 627,327.55, 940,462.33 and 272,074

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Solution

The fourth proportional to 627,327.55, 940,462.33 and 272,074 is: 407,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,327.55 : 940,462.33 = 272,074 : x
  2. Step 2: Convert to fraction form
    627,327.55/940,462.33 = 272,074/x
  3. Step 3: Cross multiply
    627,327.55x = 940,462.33 × 272,074
  4. Step 4: Simplify right side
    627,327.55x = 255,875,347,972.42
  5. Step 5: Solve for x
    x = 255,875,347,972.42/627,327.55
  6. Step 6: Final answer
    x = 407,881.57

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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.