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Finding the Fourth Proportional to 542,379.26, 748,404.56 and 300,661.62

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Solution

The fourth proportional to 542,379.26, 748,404.56 and 300,661.62 is: 414,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,379.26 : 748,404.56 = 300,661.62 : x
  2. Step 2: Convert to fraction form
    542,379.26/748,404.56 = 300,661.62/x
  3. Step 3: Cross multiply
    542,379.26x = 748,404.56 × 300,661.62
  4. Step 4: Simplify right side
    542,379.26x = 225,016,527,424.99
  5. Step 5: Solve for x
    x = 225,016,527,424.99/542,379.26
  6. Step 6: Final answer
    x = 414,869.34

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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.