Home / 811,272.44-1,216,910.74-331,500.24

Finding the Fourth Proportional to 811,272.44, 1,216,910.74 and 331,500.24

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Solution

The fourth proportional to 811,272.44, 1,216,910.74 and 331,500.24 is: 497,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,272.44 : 1,216,910.74 = 331,500.24 : x
  2. Step 2: Convert to fraction form
    811,272.44/1,216,910.74 = 331,500.24/x
  3. Step 3: Cross multiply
    811,272.44x = 1,216,910.74 × 331,500.24
  4. Step 4: Simplify right side
    811,272.44x = 403,406,202,368.58
  5. Step 5: Solve for x
    x = 403,406,202,368.58/811,272.44
  6. Step 6: Final answer
    x = 497,251.21

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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.