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Finding the Fourth Proportional to 542,576, 748,754.88 and 330,608

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Solution

The fourth proportional to 542,576, 748,754.88 and 330,608 is: 456,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,576 : 748,754.88 = 330,608 : x
  2. Step 2: Convert to fraction form
    542,576/748,754.88 = 330,608/x
  3. Step 3: Cross multiply
    542,576x = 748,754.88 × 330,608
  4. Step 4: Simplify right side
    542,576x = 247,544,353,367.04
  5. Step 5: Solve for x
    x = 247,544,353,367.04/542,576
  6. Step 6: Final answer
    x = 456,239.04

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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.