Home / 981,725.25-1,472,423.85-271,825.05

Finding the Fourth Proportional to 981,725.25, 1,472,423.85 and 271,825.05

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Solution

The fourth proportional to 981,725.25, 1,472,423.85 and 271,825.05 is: 407,692.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,725.25 : 1,472,423.85 = 271,825.05 : x
  2. Step 2: Convert to fraction form
    981,725.25/1,472,423.85 = 271,825.05/x
  3. Step 3: Cross multiply
    981,725.25x = 1,472,423.85 × 271,825.05
  4. Step 4: Simplify right side
    981,725.25x = 400,241,686,647.44
  5. Step 5: Solve for x
    x = 400,241,686,647.44/981,725.25
  6. Step 6: Final answer
    x = 407,692.16

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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.