Home / 998,163.80-1,497,245.70-921,181.40

Finding the Fourth Proportional to 998,163.80, 1,497,245.70 and 921,181.40

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Solution

The fourth proportional to 998,163.80, 1,497,245.70 and 921,181.40 is: 1,381,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,163.80 : 1,497,245.70 = 921,181.40 : x
  2. Step 2: Convert to fraction form
    998,163.80/1,497,245.70 = 921,181.40/x
  3. Step 3: Cross multiply
    998,163.80x = 1,497,245.70 × 921,181.40
  4. Step 4: Simplify right side
    998,163.80x = 1,379,234,890,069.98
  5. Step 5: Solve for x
    x = 1,379,234,890,069.98/998,163.80
  6. Step 6: Final answer
    x = 1,381,772.10

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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.