Home / 998,624.87-1,498,000.35-422,140.64

Finding the Fourth Proportional to 998,624.87, 1,498,000.35 and 422,140.64

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Solution

The fourth proportional to 998,624.87, 1,498,000.35 and 422,140.64 is: 633,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,624.87 : 1,498,000.35 = 422,140.64 : x
  2. Step 2: Convert to fraction form
    998,624.87/1,498,000.35 = 422,140.64/x
  3. Step 3: Cross multiply
    998,624.87x = 1,498,000.35 × 422,140.64
  4. Step 4: Simplify right side
    998,624.87x = 632,366,826,469.22
  5. Step 5: Solve for x
    x = 632,366,826,469.22/998,624.87
  6. Step 6: Final answer
    x = 633,237.61

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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.