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Finding the Fourth Proportional to 542,341.56, 748,191.86 and 381,301.80

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Solution

The fourth proportional to 542,341.56, 748,191.86 and 381,301.80 is: 526,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,341.56 : 748,191.86 = 381,301.80 : x
  2. Step 2: Convert to fraction form
    542,341.56/748,191.86 = 381,301.80/x
  3. Step 3: Cross multiply
    542,341.56x = 748,191.86 × 381,301.80
  4. Step 4: Simplify right side
    542,341.56x = 285,286,902,963.35
  5. Step 5: Solve for x
    x = 285,286,902,963.35/542,341.56
  6. Step 6: Final answer
    x = 526,028.10

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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.