Home / 828,150.72-1,242,226.44-259,576.14

Finding the Fourth Proportional to 828,150.72, 1,242,226.44 and 259,576.14

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Solution

The fourth proportional to 828,150.72, 1,242,226.44 and 259,576.14 is: 389,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,150.72 : 1,242,226.44 = 259,576.14 : x
  2. Step 2: Convert to fraction form
    828,150.72/1,242,226.44 = 259,576.14/x
  3. Step 3: Cross multiply
    828,150.72x = 1,242,226.44 × 259,576.14
  4. Step 4: Simplify right side
    828,150.72x = 322,452,344,301.14
  5. Step 5: Solve for x
    x = 322,452,344,301.14/828,150.72
  6. Step 6: Final answer
    x = 389,364.32

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Half scale
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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.