Home / 1,288,238.73-1,777,988.10-744,689.61

Finding the Fourth Proportional to 1,288,238.73, 1,777,988.10 and 744,689.61

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Solution

The fourth proportional to 1,288,238.73, 1,777,988.10 and 744,689.61 is: 1,027,798.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,238.73 : 1,777,988.10 = 744,689.61 : x
  2. Step 2: Convert to fraction form
    1,288,238.73/1,777,988.10 = 744,689.61/x
  3. Step 3: Cross multiply
    1,288,238.73x = 1,777,988.10 × 744,689.61
  4. Step 4: Simplify right side
    1,288,238.73x = 1,324,049,264,773.64
  5. Step 5: Solve for x
    x = 1,324,049,264,773.64/1,288,238.73
  6. Step 6: Final answer
    x = 1,027,798.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.