Home / 1,327.04-1,990.44-402.59

Finding the Fourth Proportional to 1,327.04, 1,990.44 and 402.59

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Solution

The fourth proportional to 1,327.04, 1,990.44 and 402.59 is: 603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.04 : 1,990.44 = 402.59 : x
  2. Step 2: Convert to fraction form
    1,327.04/1,990.44 = 402.59/x
  3. Step 3: Cross multiply
    1,327.04x = 1,990.44 × 402.59
  4. Step 4: Simplify right side
    1,327.04x = 801,321.29
  5. Step 5: Solve for x
    x = 801,321.29/1,327.04
  6. Step 6: Final answer
    x = 603.84

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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.