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Finding the Fourth Proportional to 542,452.45, 748,608.09 and 300,719.68

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Solution

The fourth proportional to 542,452.45, 748,608.09 and 300,719.68 is: 415,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,452.45 : 748,608.09 = 300,719.68 : x
  2. Step 2: Convert to fraction form
    542,452.45/748,608.09 = 300,719.68/x
  3. Step 3: Cross multiply
    542,452.45x = 748,608.09 × 300,719.68
  4. Step 4: Simplify right side
    542,452.45x = 225,121,185,270.21
  5. Step 5: Solve for x
    x = 225,121,185,270.21/542,452.45
  6. Step 6: Final answer
    x = 415,006.30

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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.