Home / 998,021.20-1,497,226.20-429,401.20

Finding the Fourth Proportional to 998,021.20, 1,497,226.20 and 429,401.20

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Solution

The fourth proportional to 998,021.20, 1,497,226.20 and 429,401.20 is: 644,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,021.20 : 1,497,226.20 = 429,401.20 : x
  2. Step 2: Convert to fraction form
    998,021.20/1,497,226.20 = 429,401.20/x
  3. Step 3: Cross multiply
    998,021.20x = 1,497,226.20 × 429,401.20
  4. Step 4: Simplify right side
    998,021.20x = 642,910,726,951.44
  5. Step 5: Solve for x
    x = 642,910,726,951.44/998,021.20
  6. Step 6: Final answer
    x = 644,185.44

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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.