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Finding the Fourth Proportional to 479,621.48, 661,877 and 264,761.04

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Solution

The fourth proportional to 479,621.48, 661,877 and 264,761.04 is: 365,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,621.48 : 661,877 = 264,761.04 : x
  2. Step 2: Convert to fraction form
    479,621.48/661,877 = 264,761.04/x
  3. Step 3: Cross multiply
    479,621.48x = 661,877 × 264,761.04
  4. Step 4: Simplify right side
    479,621.48x = 175,239,242,872.08
  5. Step 5: Solve for x
    x = 175,239,242,872.08/479,621.48
  6. Step 6: Final answer
    x = 365,369.88

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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.