Home / 721,965.12-1,082,924.68-343,158.36

Finding the Fourth Proportional to 721,965.12, 1,082,924.68 and 343,158.36

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Solution

The fourth proportional to 721,965.12, 1,082,924.68 and 343,158.36 is: 514,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,965.12 : 1,082,924.68 = 343,158.36 : x
  2. Step 2: Convert to fraction form
    721,965.12/1,082,924.68 = 343,158.36/x
  3. Step 3: Cross multiply
    721,965.12x = 1,082,924.68 × 343,158.36
  4. Step 4: Simplify right side
    721,965.12x = 371,614,657,192.33
  5. Step 5: Solve for x
    x = 371,614,657,192.33/721,965.12
  6. Step 6: Final answer
    x = 514,726.61

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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.