Home / 798,979.20-1,198,468.80-425,731.20

Finding the Fourth Proportional to 798,979.20, 1,198,468.80 and 425,731.20

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Solution

The fourth proportional to 798,979.20, 1,198,468.80 and 425,731.20 is: 638,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,979.20 : 1,198,468.80 = 425,731.20 : x
  2. Step 2: Convert to fraction form
    798,979.20/1,198,468.80 = 425,731.20/x
  3. Step 3: Cross multiply
    798,979.20x = 1,198,468.80 × 425,731.20
  4. Step 4: Simplify right side
    798,979.20x = 510,225,560,386.56
  5. Step 5: Solve for x
    x = 510,225,560,386.56/798,979.20
  6. Step 6: Final answer
    x = 638,596.80

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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.