Home / 667,455.30-1,001,292.12-218,045.70

Finding the Fourth Proportional to 667,455.30, 1,001,292.12 and 218,045.70

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Solution

The fourth proportional to 667,455.30, 1,001,292.12 and 218,045.70 is: 327,104.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,455.30 : 1,001,292.12 = 218,045.70 : x
  2. Step 2: Convert to fraction form
    667,455.30/1,001,292.12 = 218,045.70/x
  3. Step 3: Cross multiply
    667,455.30x = 1,001,292.12 × 218,045.70
  4. Step 4: Simplify right side
    667,455.30x = 218,327,441,209.88
  5. Step 5: Solve for x
    x = 218,327,441,209.88/667,455.30
  6. Step 6: Final answer
    x = 327,104.21

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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.