Home / 656,540.18-984,896.38-257,129.04

Finding the Fourth Proportional to 656,540.18, 984,896.38 and 257,129.04

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Solution

The fourth proportional to 656,540.18, 984,896.38 and 257,129.04 is: 385,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,540.18 : 984,896.38 = 257,129.04 : x
  2. Step 2: Convert to fraction form
    656,540.18/984,896.38 = 257,129.04/x
  3. Step 3: Cross multiply
    656,540.18x = 984,896.38 × 257,129.04
  4. Step 4: Simplify right side
    656,540.18x = 253,245,464,703.65
  5. Step 5: Solve for x
    x = 253,245,464,703.65/656,540.18
  6. Step 6: Final answer
    x = 385,727.29

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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.