Home / 998,720.80-1,498,081.20-333,786.40

Finding the Fourth Proportional to 998,720.80, 1,498,081.20 and 333,786.40

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Solution

The fourth proportional to 998,720.80, 1,498,081.20 and 333,786.40 is: 500,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,720.80 : 1,498,081.20 = 333,786.40 : x
  2. Step 2: Convert to fraction form
    998,720.80/1,498,081.20 = 333,786.40/x
  3. Step 3: Cross multiply
    998,720.80x = 1,498,081.20 × 333,786.40
  4. Step 4: Simplify right side
    998,720.80x = 500,039,130,655.68
  5. Step 5: Solve for x
    x = 500,039,130,655.68/998,720.80
  6. Step 6: Final answer
    x = 500,679.60

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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.