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Finding the Fourth Proportional to 463,576.50, 639,662.50 and 270,016.07

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Solution

The fourth proportional to 463,576.50, 639,662.50 and 270,016.07 is: 372,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,576.50 : 639,662.50 = 270,016.07 : x
  2. Step 2: Convert to fraction form
    463,576.50/639,662.50 = 270,016.07/x
  3. Step 3: Cross multiply
    463,576.50x = 639,662.50 × 270,016.07
  4. Step 4: Simplify right side
    463,576.50x = 172,719,152,102.18
  5. Step 5: Solve for x
    x = 172,719,152,102.18/463,576.50
  6. Step 6: Final answer
    x = 372,579.61

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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.