Home / 1,045.11-1,442.26-579.36

Finding the Fourth Proportional to 1,045.11, 1,442.26 and 579.36

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Solution

The fourth proportional to 1,045.11, 1,442.26 and 579.36 is: 799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.11 : 1,442.26 = 579.36 : x
  2. Step 2: Convert to fraction form
    1,045.11/1,442.26 = 579.36/x
  3. Step 3: Cross multiply
    1,045.11x = 1,442.26 × 579.36
  4. Step 4: Simplify right side
    1,045.11x = 835,584.86
  5. Step 5: Solve for x
    x = 835,584.86/1,045.11
  6. Step 6: Final answer
    x = 799.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.