Home / 1,040.72-1,436.21-574.97

Finding the Fourth Proportional to 1,040.72, 1,436.21 and 574.97

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Solution

The fourth proportional to 1,040.72, 1,436.21 and 574.97 is: 793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.72 : 1,436.21 = 574.97 : x
  2. Step 2: Convert to fraction form
    1,040.72/1,436.21 = 574.97/x
  3. Step 3: Cross multiply
    1,040.72x = 1,436.21 × 574.97
  4. Step 4: Simplify right side
    1,040.72x = 825,767.61
  5. Step 5: Solve for x
    x = 825,767.61/1,040.72
  6. Step 6: Final answer
    x = 793.46

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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.