Home / 667,447.30-1,001,280.12-218,037.70

Finding the Fourth Proportional to 667,447.30, 1,001,280.12 and 218,037.70

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Solution

The fourth proportional to 667,447.30, 1,001,280.12 and 218,037.70 is: 327,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,447.30 : 1,001,280.12 = 218,037.70 : x
  2. Step 2: Convert to fraction form
    667,447.30/1,001,280.12 = 218,037.70/x
  3. Step 3: Cross multiply
    667,447.30x = 1,001,280.12 × 218,037.70
  4. Step 4: Simplify right side
    667,447.30x = 218,316,814,420.52
  5. Step 5: Solve for x
    x = 218,316,814,420.52/667,447.30
  6. Step 6: Final answer
    x = 327,092.21

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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.