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Finding the Fourth Proportional to 542,082.11, 748,072.58 and 300,380.34

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Solution

The fourth proportional to 542,082.11, 748,072.58 and 300,380.34 is: 414,524.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,082.11 : 748,072.58 = 300,380.34 : x
  2. Step 2: Convert to fraction form
    542,082.11/748,072.58 = 300,380.34/x
  3. Step 3: Cross multiply
    542,082.11x = 748,072.58 × 300,380.34
  4. Step 4: Simplify right side
    542,082.11x = 224,706,296,676.03
  5. Step 5: Solve for x
    x = 224,706,296,676.03/542,082.11
  6. Step 6: Final answer
    x = 414,524.46

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1.5x scale

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.