Home / 1,119.04-1,679.19-469.75

Finding the Fourth Proportional to 1,119.04, 1,679.19 and 469.75

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Solution

The fourth proportional to 1,119.04, 1,679.19 and 469.75 is: 704.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.04 : 1,679.19 = 469.75 : x
  2. Step 2: Convert to fraction form
    1,119.04/1,679.19 = 469.75/x
  3. Step 3: Cross multiply
    1,119.04x = 1,679.19 × 469.75
  4. Step 4: Simplify right side
    1,119.04x = 788,799.50
  5. Step 5: Solve for x
    x = 788,799.50/1,119.04
  6. Step 6: Final answer
    x = 704.89

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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.