Home / 681,747.45-940,817.83-375,834.78

Finding the Fourth Proportional to 681,747.45, 940,817.83 and 375,834.78

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Solution

The fourth proportional to 681,747.45, 940,817.83 and 375,834.78 is: 518,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,747.45 : 940,817.83 = 375,834.78 : x
  2. Step 2: Convert to fraction form
    681,747.45/940,817.83 = 375,834.78/x
  3. Step 3: Cross multiply
    681,747.45x = 940,817.83 × 375,834.78
  4. Step 4: Simplify right side
    681,747.45x = 353,592,065,449.76
  5. Step 5: Solve for x
    x = 353,592,065,449.76/681,747.45
  6. Step 6: Final answer
    x = 518,655.50

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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.