Home / 827,728.40-1,241,592.60-491,805.20

Finding the Fourth Proportional to 827,728.40, 1,241,592.60 and 491,805.20

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Solution

The fourth proportional to 827,728.40, 1,241,592.60 and 491,805.20 is: 737,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,728.40 : 1,241,592.60 = 491,805.20 : x
  2. Step 2: Convert to fraction form
    827,728.40/1,241,592.60 = 491,805.20/x
  3. Step 3: Cross multiply
    827,728.40x = 1,241,592.60 × 491,805.20
  4. Step 4: Simplify right side
    827,728.40x = 610,621,696,961.52
  5. Step 5: Solve for x
    x = 610,621,696,961.52/827,728.40
  6. Step 6: Final answer
    x = 737,707.80

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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.