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Finding the Fourth Proportional to 542,242.62, 813,374.73 and 381,661.74

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Solution

The fourth proportional to 542,242.62, 813,374.73 and 381,661.74 is: 572,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,242.62 : 813,374.73 = 381,661.74 : x
  2. Step 2: Convert to fraction form
    542,242.62/813,374.73 = 381,661.74/x
  3. Step 3: Cross multiply
    542,242.62x = 813,374.73 × 381,661.74
  4. Step 4: Simplify right side
    542,242.62x = 310,434,014,723.83
  5. Step 5: Solve for x
    x = 310,434,014,723.83/542,242.62
  6. Step 6: Final answer
    x = 572,500.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.