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Finding the Fourth Proportional to 552,375.92, 762,383.40 and 345,740.13

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Solution

The fourth proportional to 552,375.92, 762,383.40 and 345,740.13 is: 477,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,375.92 : 762,383.40 = 345,740.13 : x
  2. Step 2: Convert to fraction form
    552,375.92/762,383.40 = 345,740.13/x
  3. Step 3: Cross multiply
    552,375.92x = 762,383.40 × 345,740.13
  4. Step 4: Simplify right side
    552,375.92x = 263,586,535,825.84
  5. Step 5: Solve for x
    x = 263,586,535,825.84/552,375.92
  6. Step 6: Final answer
    x = 477,186.87

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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.