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Finding the Fourth Proportional to 681,441.95, 940,396.10 and 375,529.29

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Solution

The fourth proportional to 681,441.95, 940,396.10 and 375,529.29 is: 518,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,441.95 : 940,396.10 = 375,529.29 : x
  2. Step 2: Convert to fraction form
    681,441.95/940,396.10 = 375,529.29/x
  3. Step 3: Cross multiply
    681,441.95x = 940,396.10 × 375,529.29
  4. Step 4: Simplify right side
    681,441.95x = 353,146,277,874.12
  5. Step 5: Solve for x
    x = 353,146,277,874.12/681,441.95
  6. Step 6: Final answer
    x = 518,233.84

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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.