Home / 988.04-1,481.36-500.75

Finding the Fourth Proportional to 988.04, 1,481.36 and 500.75

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Solution

The fourth proportional to 988.04, 1,481.36 and 500.75 is: 750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    988.04 : 1,481.36 = 500.75 : x
  2. Step 2: Convert to fraction form
    988.04/1,481.36 = 500.75/x
  3. Step 3: Cross multiply
    988.04x = 1,481.36 × 500.75
  4. Step 4: Simplify right side
    988.04x = 741,781.11
  5. Step 5: Solve for x
    x = 741,781.11/988.04
  6. Step 6: Final answer
    x = 750.76

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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.