Home / 998,966.80-1,498,450.20-325,111.60

Finding the Fourth Proportional to 998,966.80, 1,498,450.20 and 325,111.60

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Solution

The fourth proportional to 998,966.80, 1,498,450.20 and 325,111.60 is: 487,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,966.80 : 1,498,450.20 = 325,111.60 : x
  2. Step 2: Convert to fraction form
    998,966.80/1,498,450.20 = 325,111.60/x
  3. Step 3: Cross multiply
    998,966.80x = 1,498,450.20 × 325,111.60
  4. Step 4: Simplify right side
    998,966.80x = 487,163,542,042.32
  5. Step 5: Solve for x
    x = 487,163,542,042.32/998,966.80
  6. Step 6: Final answer
    x = 487,667.40

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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.