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Finding the Fourth Proportional to 1,482.62, 2,224.44 and 990.99

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Solution

The fourth proportional to 1,482.62, 2,224.44 and 990.99 is: 1,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.62 : 2,224.44 = 990.99 : x
  2. Step 2: Convert to fraction form
    1,482.62/2,224.44 = 990.99/x
  3. Step 3: Cross multiply
    1,482.62x = 2,224.44 × 990.99
  4. Step 4: Simplify right side
    1,482.62x = 2,204,397.80
  5. Step 5: Solve for x
    x = 2,204,397.80/1,482.62
  6. Step 6: Final answer
    x = 1,486.83

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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.