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Finding the Fourth Proportional to 681,431.29, 940,362.25 and 375,535.93

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Solution

The fourth proportional to 681,431.29, 940,362.25 and 375,535.93 is: 518,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,431.29 : 940,362.25 = 375,535.93 : x
  2. Step 2: Convert to fraction form
    681,431.29/940,362.25 = 375,535.93/x
  3. Step 3: Cross multiply
    681,431.29x = 940,362.25 × 375,535.93
  4. Step 4: Simplify right side
    681,431.29x = 353,139,812,090.64
  5. Step 5: Solve for x
    x = 353,139,812,090.64/681,431.29
  6. Step 6: Final answer
    x = 518,232.46

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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.