Home / 681,660.80-940,746.05-375,791.54

Finding the Fourth Proportional to 681,660.80, 940,746.05 and 375,791.54

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Solution

The fourth proportional to 681,660.80, 940,746.05 and 375,791.54 is: 518,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,660.80 : 940,746.05 = 375,791.54 : x
  2. Step 2: Convert to fraction form
    681,660.80/940,746.05 = 375,791.54/x
  3. Step 3: Cross multiply
    681,660.80x = 940,746.05 × 375,791.54
  4. Step 4: Simplify right side
    681,660.80x = 353,524,401,704.95
  5. Step 5: Solve for x
    x = 353,524,401,704.95/681,660.80
  6. Step 6: Final answer
    x = 518,622.17

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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.