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Finding the Fourth Proportional to 681,735.66, 940,798.16 and 375,805.46

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Solution

The fourth proportional to 681,735.66, 940,798.16 and 375,805.46 is: 518,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,735.66 : 940,798.16 = 375,805.46 : x
  2. Step 2: Convert to fraction form
    681,735.66/940,798.16 = 375,805.46/x
  3. Step 3: Cross multiply
    681,735.66x = 940,798.16 × 375,805.46
  4. Step 4: Simplify right side
    681,735.66x = 353,557,083,990.11
  5. Step 5: Solve for x
    x = 353,557,083,990.11/681,735.66
  6. Step 6: Final answer
    x = 518,613.16

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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.