Home / 681,557.05-940,510.35-375,632.49

Finding the Fourth Proportional to 681,557.05, 940,510.35 and 375,632.49

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Solution

The fourth proportional to 681,557.05, 940,510.35 and 375,632.49 is: 518,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,557.05 : 940,510.35 = 375,632.49 : x
  2. Step 2: Convert to fraction form
    681,557.05/940,510.35 = 375,632.49/x
  3. Step 3: Cross multiply
    681,557.05x = 940,510.35 × 375,632.49
  4. Step 4: Simplify right side
    681,557.05x = 353,286,244,641.27
  5. Step 5: Solve for x
    x = 353,286,244,641.27/681,557.05
  6. Step 6: Final answer
    x = 518,351.68

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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.