Home / 691,999.72-1,037,910.30-218,732.92

Finding the Fourth Proportional to 691,999.72, 1,037,910.30 and 218,732.92

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Solution

The fourth proportional to 691,999.72, 1,037,910.30 and 218,732.92 is: 328,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,999.72 : 1,037,910.30 = 218,732.92 : x
  2. Step 2: Convert to fraction form
    691,999.72/1,037,910.30 = 218,732.92/x
  3. Step 3: Cross multiply
    691,999.72x = 1,037,910.30 × 218,732.92
  4. Step 4: Simplify right side
    691,999.72x = 227,025,150,617.08
  5. Step 5: Solve for x
    x = 227,025,150,617.08/691,999.72
  6. Step 6: Final answer
    x = 328,071.16

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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.