Home / 840,175.29-1,259,853.62-279,020.25

Finding the Fourth Proportional to 840,175.29, 1,259,853.62 and 279,020.25

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Solution

The fourth proportional to 840,175.29, 1,259,853.62 and 279,020.25 is: 418,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,175.29 : 1,259,853.62 = 279,020.25 : x
  2. Step 2: Convert to fraction form
    840,175.29/1,259,853.62 = 279,020.25/x
  3. Step 3: Cross multiply
    840,175.29x = 1,259,853.62 × 279,020.25
  4. Step 4: Simplify right side
    840,175.29x = 351,524,670,620.70
  5. Step 5: Solve for x
    x = 351,524,670,620.70/840,175.29
  6. Step 6: Final answer
    x = 418,394.44

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Double scale
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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.