Home / 827,751.20-1,241,626.80-329,115.20

Finding the Fourth Proportional to 827,751.20, 1,241,626.80 and 329,115.20

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Solution

The fourth proportional to 827,751.20, 1,241,626.80 and 329,115.20 is: 493,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,751.20 : 1,241,626.80 = 329,115.20 : x
  2. Step 2: Convert to fraction form
    827,751.20/1,241,626.80 = 329,115.20/x
  3. Step 3: Cross multiply
    827,751.20x = 1,241,626.80 × 329,115.20
  4. Step 4: Simplify right side
    827,751.20x = 408,638,252,607.36
  5. Step 5: Solve for x
    x = 408,638,252,607.36/827,751.20
  6. Step 6: Final answer
    x = 493,672.80

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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.