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Finding the Fourth Proportional to 398,750.37, 598,374.55 and 265,723.97

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Solution

The fourth proportional to 398,750.37, 598,374.55 and 265,723.97 is: 398,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,750.37 : 598,374.55 = 265,723.97 : x
  2. Step 2: Convert to fraction form
    398,750.37/598,374.55 = 265,723.97/x
  3. Step 3: Cross multiply
    398,750.37x = 598,374.55 × 265,723.97
  4. Step 4: Simplify right side
    398,750.37x = 159,002,460,972.96
  5. Step 5: Solve for x
    x = 159,002,460,972.96/398,750.37
  6. Step 6: Final answer
    x = 398,751.88

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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.