Home / 998,718.80-1,498,078.20-333,784.40

Finding the Fourth Proportional to 998,718.80, 1,498,078.20 and 333,784.40

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Solution

The fourth proportional to 998,718.80, 1,498,078.20 and 333,784.40 is: 500,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,718.80 : 1,498,078.20 = 333,784.40 : x
  2. Step 2: Convert to fraction form
    998,718.80/1,498,078.20 = 333,784.40/x
  3. Step 3: Cross multiply
    998,718.80x = 1,498,078.20 × 333,784.40
  4. Step 4: Simplify right side
    998,718.80x = 500,035,133,140.08
  5. Step 5: Solve for x
    x = 500,035,133,140.08/998,718.80
  6. Step 6: Final answer
    x = 500,676.60

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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.