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Finding the Fourth Proportional to 671,451.60, 1,008,343.80 and 356,523.60

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Solution

The fourth proportional to 671,451.60, 1,008,343.80 and 356,523.60 is: 535,404.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,451.60 : 1,008,343.80 = 356,523.60 : x
  2. Step 2: Convert to fraction form
    671,451.60/1,008,343.80 = 356,523.60/x
  3. Step 3: Cross multiply
    671,451.60x = 1,008,343.80 × 356,523.60
  4. Step 4: Simplify right side
    671,451.60x = 359,498,361,613.68
  5. Step 5: Solve for x
    x = 359,498,361,613.68/671,451.60
  6. Step 6: Final answer
    x = 535,404.73

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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.