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Finding the Fourth Proportional to 498,325.33, 687,679.36 and 271,972.45

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Solution

The fourth proportional to 498,325.33, 687,679.36 and 271,972.45 is: 375,316.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,325.33 : 687,679.36 = 271,972.45 : x
  2. Step 2: Convert to fraction form
    498,325.33/687,679.36 = 271,972.45/x
  3. Step 3: Cross multiply
    498,325.33x = 687,679.36 × 271,972.45
  4. Step 4: Simplify right side
    498,325.33x = 187,029,840,353.63
  5. Step 5: Solve for x
    x = 187,029,840,353.63/498,325.33
  6. Step 6: Final answer
    x = 375,316.74

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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.