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Finding the Fourth Proportional to 681,714.54, 940,723.76 and 375,775.11

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Solution

The fourth proportional to 681,714.54, 940,723.76 and 375,775.11 is: 518,546.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,714.54 : 940,723.76 = 375,775.11 : x
  2. Step 2: Convert to fraction form
    681,714.54/940,723.76 = 375,775.11/x
  3. Step 3: Cross multiply
    681,714.54x = 940,723.76 × 375,775.11
  4. Step 4: Simplify right side
    681,714.54x = 353,500,574,393.61
  5. Step 5: Solve for x
    x = 353,500,574,393.61/681,714.54
  6. Step 6: Final answer
    x = 518,546.33

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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.