Home / 989,844.20-1,484,766.30-691,245.80

Finding the Fourth Proportional to 989,844.20, 1,484,766.30 and 691,245.80

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Solution

The fourth proportional to 989,844.20, 1,484,766.30 and 691,245.80 is: 1,036,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,844.20 : 1,484,766.30 = 691,245.80 : x
  2. Step 2: Convert to fraction form
    989,844.20/1,484,766.30 = 691,245.80/x
  3. Step 3: Cross multiply
    989,844.20x = 1,484,766.30 × 691,245.80
  4. Step 4: Simplify right side
    989,844.20x = 1,026,338,468,856.54
  5. Step 5: Solve for x
    x = 1,026,338,468,856.54/989,844.20
  6. Step 6: Final answer
    x = 1,036,868.70

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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.