Home / 1,011,449.33-1,394,497.71-721,391.57

Finding the Fourth Proportional to 1,011,449.33, 1,394,497.71 and 721,391.57

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Solution

The fourth proportional to 1,011,449.33, 1,394,497.71 and 721,391.57 is: 994,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,449.33 : 1,394,497.71 = 721,391.57 : x
  2. Step 2: Convert to fraction form
    1,011,449.33/1,394,497.71 = 721,391.57/x
  3. Step 3: Cross multiply
    1,011,449.33x = 1,394,497.71 × 721,391.57
  4. Step 4: Simplify right side
    1,011,449.33x = 1,005,978,885,405.82
  5. Step 5: Solve for x
    x = 1,005,978,885,405.82/1,011,449.33
  6. Step 6: Final answer
    x = 994,591.48

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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.