Home / 681,555.74-940,508.54-375,631.18

Finding the Fourth Proportional to 681,555.74, 940,508.54 and 375,631.18

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Solution

The fourth proportional to 681,555.74, 940,508.54 and 375,631.18 is: 518,349.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,555.74 : 940,508.54 = 375,631.18 : x
  2. Step 2: Convert to fraction form
    681,555.74/940,508.54 = 375,631.18/x
  3. Step 3: Cross multiply
    681,555.74x = 940,508.54 × 375,631.18
  4. Step 4: Simplify right side
    681,555.74x = 353,284,329,859.47
  5. Step 5: Solve for x
    x = 353,284,329,859.47/681,555.74
  6. Step 6: Final answer
    x = 518,349.87

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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.