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Finding the Fourth Proportional to 681,785.67, 940,871.48 and 375,873

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Solution

The fourth proportional to 681,785.67, 940,871.48 and 375,873 is: 518,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,785.67 : 940,871.48 = 375,873 : x
  2. Step 2: Convert to fraction form
    681,785.67/940,871.48 = 375,873/x
  3. Step 3: Cross multiply
    681,785.67x = 940,871.48 × 375,873
  4. Step 4: Simplify right side
    681,785.67x = 353,648,185,802.04
  5. Step 5: Solve for x
    x = 353,648,185,802.04/681,785.67
  6. Step 6: Final answer
    x = 518,708.74

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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.