Home / 827,135.70-1,240,703.55-295,257.30

Finding the Fourth Proportional to 827,135.70, 1,240,703.55 and 295,257.30

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Solution

The fourth proportional to 827,135.70, 1,240,703.55 and 295,257.30 is: 442,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,135.70 : 1,240,703.55 = 295,257.30 : x
  2. Step 2: Convert to fraction form
    827,135.70/1,240,703.55 = 295,257.30/x
  3. Step 3: Cross multiply
    827,135.70x = 1,240,703.55 × 295,257.30
  4. Step 4: Simplify right side
    827,135.70x = 366,326,780,273.42
  5. Step 5: Solve for x
    x = 366,326,780,273.42/827,135.70
  6. Step 6: Final answer
    x = 442,885.95

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Double scale
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Similar ratio
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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.