Home / 691,995.60-1,037,896.20-218,728.80

Finding the Fourth Proportional to 691,995.60, 1,037,896.20 and 218,728.80

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Solution

The fourth proportional to 691,995.60, 1,037,896.20 and 218,728.80 is: 328,062.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,995.60 : 1,037,896.20 = 218,728.80 : x
  2. Step 2: Convert to fraction form
    691,995.60/1,037,896.20 = 218,728.80/x
  3. Step 3: Cross multiply
    691,995.60x = 1,037,896.20 × 218,728.80
  4. Step 4: Simplify right side
    691,995.60x = 227,017,790,350.56
  5. Step 5: Solve for x
    x = 227,017,790,350.56/691,995.60
  6. Step 6: Final answer
    x = 328,062.48

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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.