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Finding the Fourth Proportional to 605,867.70, 908,801.55 and 437,031.30

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Solution

The fourth proportional to 605,867.70, 908,801.55 and 437,031.30 is: 655,546.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,867.70 : 908,801.55 = 437,031.30 : x
  2. Step 2: Convert to fraction form
    605,867.70/908,801.55 = 437,031.30/x
  3. Step 3: Cross multiply
    605,867.70x = 908,801.55 × 437,031.30
  4. Step 4: Simplify right side
    605,867.70x = 397,174,722,838.52
  5. Step 5: Solve for x
    x = 397,174,722,838.52/605,867.70
  6. Step 6: Final answer
    x = 655,546.95

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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.