Home / 998,623.87-1,497,998.85-422,139.64

Finding the Fourth Proportional to 998,623.87, 1,497,998.85 and 422,139.64

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Solution

The fourth proportional to 998,623.87, 1,497,998.85 and 422,139.64 is: 633,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,623.87 : 1,497,998.85 = 422,139.64 : x
  2. Step 2: Convert to fraction form
    998,623.87/1,497,998.85 = 422,139.64/x
  3. Step 3: Cross multiply
    998,623.87x = 1,497,998.85 × 422,139.64
  4. Step 4: Simplify right side
    998,623.87x = 632,364,695,259.41
  5. Step 5: Solve for x
    x = 632,364,695,259.41/998,623.87
  6. Step 6: Final answer
    x = 633,236.11

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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.