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Finding the Fourth Proportional to 542,472.21, 748,610.37 and 300,748.59

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Solution

The fourth proportional to 542,472.21, 748,610.37 and 300,748.59 is: 415,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,472.21 : 748,610.37 = 300,748.59 : x
  2. Step 2: Convert to fraction form
    542,472.21/748,610.37 = 300,748.59/x
  3. Step 3: Cross multiply
    542,472.21x = 748,610.37 × 300,748.59
  4. Step 4: Simplify right side
    542,472.21x = 225,143,513,236.88
  5. Step 5: Solve for x
    x = 225,143,513,236.88/542,472.21
  6. Step 6: Final answer
    x = 415,032.34

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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.