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Finding the Fourth Proportional to 542,436.60, 748,606.68 and 300,794.92

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Solution

The fourth proportional to 542,436.60, 748,606.68 and 300,794.92 is: 415,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,436.60 : 748,606.68 = 300,794.92 : x
  2. Step 2: Convert to fraction form
    542,436.60/748,606.68 = 300,794.92/x
  3. Step 3: Cross multiply
    542,436.60x = 748,606.68 × 300,794.92
  4. Step 4: Simplify right side
    542,436.60x = 225,177,086,422.07
  5. Step 5: Solve for x
    x = 225,177,086,422.07/542,436.60
  6. Step 6: Final answer
    x = 415,121.48

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Double scale
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Similar ratio
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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.