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Finding the Fourth Proportional to 542,219.41, 748,262.77 and 300,538.29

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Solution

The fourth proportional to 542,219.41, 748,262.77 and 300,538.29 is: 414,742.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,219.41 : 748,262.77 = 300,538.29 : x
  2. Step 2: Convert to fraction form
    542,219.41/748,262.77 = 300,538.29/x
  3. Step 3: Cross multiply
    542,219.41x = 748,262.77 × 300,538.29
  4. Step 4: Simplify right side
    542,219.41x = 224,881,612,615.12
  5. Step 5: Solve for x
    x = 224,881,612,615.12/542,219.41
  6. Step 6: Final answer
    x = 414,742.83

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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.