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Finding the Fourth Proportional to 542,871.24, 749,161.44 and 301,190.64

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Solution

The fourth proportional to 542,871.24, 749,161.44 and 301,190.64 is: 415,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,871.24 : 749,161.44 = 301,190.64 : x
  2. Step 2: Convert to fraction form
    542,871.24/749,161.44 = 301,190.64/x
  3. Step 3: Cross multiply
    542,871.24x = 749,161.44 × 301,190.64
  4. Step 4: Simplify right side
    542,871.24x = 225,640,413,576.92
  5. Step 5: Solve for x
    x = 225,640,413,576.92/542,871.24
  6. Step 6: Final answer
    x = 415,642.60

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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.