Home / 828,121.97-1,242,183.24-259,547.18

Finding the Fourth Proportional to 828,121.97, 1,242,183.24 and 259,547.18

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Solution

The fourth proportional to 828,121.97, 1,242,183.24 and 259,547.18 is: 389,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,121.97 : 1,242,183.24 = 259,547.18 : x
  2. Step 2: Convert to fraction form
    828,121.97/1,242,183.24 = 259,547.18/x
  3. Step 3: Cross multiply
    828,121.97x = 1,242,183.24 × 259,547.18
  4. Step 4: Simplify right side
    828,121.97x = 322,405,159,117.42
  5. Step 5: Solve for x
    x = 322,405,159,117.42/828,121.97
  6. Step 6: Final answer
    x = 389,320.86

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Double scale
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Similar ratio
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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.