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Finding the Fourth Proportional to 542,598.12, 748,789.60 and 300,866.56

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Solution

The fourth proportional to 542,598.12, 748,789.60 and 300,866.56 is: 415,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,598.12 : 748,789.60 = 300,866.56 : x
  2. Step 2: Convert to fraction form
    542,598.12/748,789.60 = 300,866.56/x
  3. Step 3: Cross multiply
    542,598.12x = 748,789.60 × 300,866.56
  4. Step 4: Simplify right side
    542,598.12x = 225,285,751,115.78
  5. Step 5: Solve for x
    x = 225,285,751,115.78/542,598.12
  6. Step 6: Final answer
    x = 415,198.18

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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.