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Finding the Fourth Proportional to 605,114.90, 907,672.35 and 406,049.30

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Solution

The fourth proportional to 605,114.90, 907,672.35 and 406,049.30 is: 609,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,114.90 : 907,672.35 = 406,049.30 : x
  2. Step 2: Convert to fraction form
    605,114.90/907,672.35 = 406,049.30/x
  3. Step 3: Cross multiply
    605,114.90x = 907,672.35 × 406,049.30
  4. Step 4: Simplify right side
    605,114.90x = 368,559,722,346.86
  5. Step 5: Solve for x
    x = 368,559,722,346.86/605,114.90
  6. Step 6: Final answer
    x = 609,073.95

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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.