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Finding the Fourth Proportional to 654,383.80, 981,381.30 and 254,794.60

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Solution

The fourth proportional to 654,383.80, 981,381.30 and 254,794.60 is: 382,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,383.80 : 981,381.30 = 254,794.60 : x
  2. Step 2: Convert to fraction form
    654,383.80/981,381.30 = 254,794.60/x
  3. Step 3: Cross multiply
    654,383.80x = 981,381.30 × 254,794.60
  4. Step 4: Simplify right side
    654,383.80x = 250,050,655,780.98
  5. Step 5: Solve for x
    x = 250,050,655,780.98/654,383.80
  6. Step 6: Final answer
    x = 382,116.21

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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.