Home / 998,712.80-1,498,069.20-333,778.40

Finding the Fourth Proportional to 998,712.80, 1,498,069.20 and 333,778.40

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Solution

The fourth proportional to 998,712.80, 1,498,069.20 and 333,778.40 is: 500,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,712.80 : 1,498,069.20 = 333,778.40 : x
  2. Step 2: Convert to fraction form
    998,712.80/1,498,069.20 = 333,778.40/x
  3. Step 3: Cross multiply
    998,712.80x = 1,498,069.20 × 333,778.40
  4. Step 4: Simplify right side
    998,712.80x = 500,023,140,665.28
  5. Step 5: Solve for x
    x = 500,023,140,665.28/998,712.80
  6. Step 6: Final answer
    x = 500,667.60

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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.