Home / 1,327.34-1,990.98-450.04

Finding the Fourth Proportional to 1,327.34, 1,990.98 and 450.04

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Solution

The fourth proportional to 1,327.34, 1,990.98 and 450.04 is: 675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.34 : 1,990.98 = 450.04 : x
  2. Step 2: Convert to fraction form
    1,327.34/1,990.98 = 450.04/x
  3. Step 3: Cross multiply
    1,327.34x = 1,990.98 × 450.04
  4. Step 4: Simplify right side
    1,327.34x = 896,020.64
  5. Step 5: Solve for x
    x = 896,020.64/1,327.34
  6. Step 6: Final answer
    x = 675.05

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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.