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Finding the Fourth Proportional to 479,422.50, 661,616.52 and 264,576.15

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Solution

The fourth proportional to 479,422.50, 661,616.52 and 264,576.15 is: 365,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,422.50 : 661,616.52 = 264,576.15 : x
  2. Step 2: Convert to fraction form
    479,422.50/661,616.52 = 264,576.15/x
  3. Step 3: Cross multiply
    479,422.50x = 661,616.52 × 264,576.15
  4. Step 4: Simplify right side
    479,422.50x = 175,047,951,638.00
  5. Step 5: Solve for x
    x = 175,047,951,638.00/479,422.50
  6. Step 6: Final answer
    x = 365,122.52

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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.