Home / 998,977.20-1,498,465.80-289,028.40

Finding the Fourth Proportional to 998,977.20, 1,498,465.80 and 289,028.40

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Solution

The fourth proportional to 998,977.20, 1,498,465.80 and 289,028.40 is: 433,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,977.20 : 1,498,465.80 = 289,028.40 : x
  2. Step 2: Convert to fraction form
    998,977.20/1,498,465.80 = 289,028.40/x
  3. Step 3: Cross multiply
    998,977.20x = 1,498,465.80 × 289,028.40
  4. Step 4: Simplify right side
    998,977.20x = 433,099,172,628.72
  5. Step 5: Solve for x
    x = 433,099,172,628.72/998,977.20
  6. Step 6: Final answer
    x = 433,542.60

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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.