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Finding the Fourth Proportional to 486,440.54, 729,165.06 and 275,633.18

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Solution

The fourth proportional to 486,440.54, 729,165.06 and 275,633.18 is: 413,168.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,440.54 : 729,165.06 = 275,633.18 : x
  2. Step 2: Convert to fraction form
    486,440.54/729,165.06 = 275,633.18/x
  3. Step 3: Cross multiply
    486,440.54x = 729,165.06 × 275,633.18
  4. Step 4: Simplify right side
    486,440.54x = 200,982,084,232.69
  5. Step 5: Solve for x
    x = 200,982,084,232.69/486,440.54
  6. Step 6: Final answer
    x = 413,168.86

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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.