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Finding the Fourth Proportional to 681,516.53, 940,499.22 and 375,603.92

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Solution

The fourth proportional to 681,516.53, 940,499.22 and 375,603.92 is: 518,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,516.53 : 940,499.22 = 375,603.92 : x
  2. Step 2: Convert to fraction form
    681,516.53/940,499.22 = 375,603.92/x
  3. Step 3: Cross multiply
    681,516.53x = 940,499.22 × 375,603.92
  4. Step 4: Simplify right side
    681,516.53x = 353,255,193,788.94
  5. Step 5: Solve for x
    x = 353,255,193,788.94/681,516.53
  6. Step 6: Final answer
    x = 518,336.94

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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.