Home / 725,765.66-1,001,578.37-399,061.76

Finding the Fourth Proportional to 725,765.66, 1,001,578.37 and 399,061.76

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Solution

The fourth proportional to 725,765.66, 1,001,578.37 and 399,061.76 is: 550,717.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,765.66 : 1,001,578.37 = 399,061.76 : x
  2. Step 2: Convert to fraction form
    725,765.66/1,001,578.37 = 399,061.76/x
  3. Step 3: Cross multiply
    725,765.66x = 1,001,578.37 × 399,061.76
  4. Step 4: Simplify right side
    725,765.66x = 399,691,620,106.93
  5. Step 5: Solve for x
    x = 399,691,620,106.93/725,765.66
  6. Step 6: Final answer
    x = 550,717.19

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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.