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Finding the Fourth Proportional to 667,073.60, 1,000,610.40 and 401,134.40

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Solution

The fourth proportional to 667,073.60, 1,000,610.40 and 401,134.40 is: 601,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,073.60 : 1,000,610.40 = 401,134.40 : x
  2. Step 2: Convert to fraction form
    667,073.60/1,000,610.40 = 401,134.40/x
  3. Step 3: Cross multiply
    667,073.60x = 1,000,610.40 × 401,134.40
  4. Step 4: Simplify right side
    667,073.60x = 401,379,252,437.76
  5. Step 5: Solve for x
    x = 401,379,252,437.76/667,073.60
  6. Step 6: Final answer
    x = 601,701.60

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Similar ratio
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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.