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Finding the Fourth Proportional to 627,221.34, 940,306.73 and 437,124.06

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Solution

The fourth proportional to 627,221.34, 940,306.73 and 437,124.06 is: 655,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,221.34 : 940,306.73 = 437,124.06 : x
  2. Step 2: Convert to fraction form
    627,221.34/940,306.73 = 437,124.06/x
  3. Step 3: Cross multiply
    627,221.34x = 940,306.73 × 437,124.06
  4. Step 4: Simplify right side
    627,221.34x = 411,030,693,277.30
  5. Step 5: Solve for x
    x = 411,030,693,277.30/627,221.34
  6. Step 6: Final answer
    x = 655,320.01

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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.