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Finding the Fourth Proportional to 496,774.20, 745,161.30 and 472,279.80

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Solution

The fourth proportional to 496,774.20, 745,161.30 and 472,279.80 is: 708,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,774.20 : 745,161.30 = 472,279.80 : x
  2. Step 2: Convert to fraction form
    496,774.20/745,161.30 = 472,279.80/x
  3. Step 3: Cross multiply
    496,774.20x = 745,161.30 × 472,279.80
  4. Step 4: Simplify right side
    496,774.20x = 351,924,629,731.74
  5. Step 5: Solve for x
    x = 351,924,629,731.74/496,774.20
  6. Step 6: Final answer
    x = 708,419.70

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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.