Home / 1,045.44-1,442.70-579.68

Finding the Fourth Proportional to 1,045.44, 1,442.70 and 579.68

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Solution

The fourth proportional to 1,045.44, 1,442.70 and 579.68 is: 799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.44 : 1,442.70 = 579.68 : x
  2. Step 2: Convert to fraction form
    1,045.44/1,442.70 = 579.68/x
  3. Step 3: Cross multiply
    1,045.44x = 1,442.70 × 579.68
  4. Step 4: Simplify right side
    1,045.44x = 836,304.34
  5. Step 5: Solve for x
    x = 836,304.34/1,045.44
  6. Step 6: Final answer
    x = 799.95

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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.