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Finding the Fourth Proportional to 681,785.94, 940,871.85 and 375,873.27

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Solution

The fourth proportional to 681,785.94, 940,871.85 and 375,873.27 is: 518,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,785.94 : 940,871.85 = 375,873.27 : x
  2. Step 2: Convert to fraction form
    681,785.94/940,871.85 = 375,873.27/x
  3. Step 3: Cross multiply
    681,785.94x = 940,871.85 × 375,873.27
  4. Step 4: Simplify right side
    681,785.94x = 353,648,579,265.06
  5. Step 5: Solve for x
    x = 353,648,579,265.06/681,785.94
  6. Step 6: Final answer
    x = 518,709.11

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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.