Home / 827,147.70-1,240,721.55-295,269.30

Finding the Fourth Proportional to 827,147.70, 1,240,721.55 and 295,269.30

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Solution

The fourth proportional to 827,147.70, 1,240,721.55 and 295,269.30 is: 442,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,147.70 : 1,240,721.55 = 295,269.30 : x
  2. Step 2: Convert to fraction form
    827,147.70/1,240,721.55 = 295,269.30/x
  3. Step 3: Cross multiply
    827,147.70x = 1,240,721.55 × 295,269.30
  4. Step 4: Simplify right side
    827,147.70x = 366,346,983,563.42
  5. Step 5: Solve for x
    x = 366,346,983,563.42/827,147.70
  6. Step 6: Final answer
    x = 442,903.95

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Double scale
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Similar ratio
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1.5x scale

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.