Home / 798,959.70-1,198,439.55-266,498.10

Finding the Fourth Proportional to 798,959.70, 1,198,439.55 and 266,498.10

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Solution

The fourth proportional to 798,959.70, 1,198,439.55 and 266,498.10 is: 399,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,959.70 : 1,198,439.55 = 266,498.10 : x
  2. Step 2: Convert to fraction form
    798,959.70/1,198,439.55 = 266,498.10/x
  3. Step 3: Cross multiply
    798,959.70x = 1,198,439.55 × 266,498.10
  4. Step 4: Simplify right side
    798,959.70x = 319,381,863,039.86
  5. Step 5: Solve for x
    x = 319,381,863,039.86/798,959.70
  6. Step 6: Final answer
    x = 399,747.15

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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.