Home / 828,839.88-1,243,260.26-260,218.46

Finding the Fourth Proportional to 828,839.88, 1,243,260.26 and 260,218.46

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Solution

The fourth proportional to 828,839.88, 1,243,260.26 and 260,218.46 is: 390,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,839.88 : 1,243,260.26 = 260,218.46 : x
  2. Step 2: Convert to fraction form
    828,839.88/1,243,260.26 = 260,218.46/x
  3. Step 3: Cross multiply
    828,839.88x = 1,243,260.26 × 260,218.46
  4. Step 4: Simplify right side
    828,839.88x = 323,519,262,719.01
  5. Step 5: Solve for x
    x = 323,519,262,719.01/828,839.88
  6. Step 6: Final answer
    x = 390,327.82

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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.