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Finding the Fourth Proportional to 681,441.84, 940,395.96 and 375,529.20

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Solution

The fourth proportional to 681,441.84, 940,395.96 and 375,529.20 is: 518,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,441.84 : 940,395.96 = 375,529.20 : x
  2. Step 2: Convert to fraction form
    681,441.84/940,395.96 = 375,529.20/x
  3. Step 3: Cross multiply
    681,441.84x = 940,395.96 × 375,529.20
  4. Step 4: Simplify right side
    681,441.84x = 353,146,135,962.41
  5. Step 5: Solve for x
    x = 353,146,135,962.41/681,441.84
  6. Step 6: Final answer
    x = 518,233.72

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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.