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Finding the Fourth Proportional to 542,295.27, 748,412.28 and 300,653.64

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Solution

The fourth proportional to 542,295.27, 748,412.28 and 300,653.64 is: 414,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,295.27 : 748,412.28 = 300,653.64 : x
  2. Step 2: Convert to fraction form
    542,295.27/748,412.28 = 300,653.64/x
  3. Step 3: Cross multiply
    542,295.27x = 748,412.28 × 300,653.64
  4. Step 4: Simplify right side
    542,295.27x = 225,012,876,202.70
  5. Step 5: Solve for x
    x = 225,012,876,202.70/542,295.27
  6. Step 6: Final answer
    x = 414,926.86

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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.