Home / 1,045.46-1,442.67-579.71

Finding the Fourth Proportional to 1,045.46, 1,442.67 and 579.71

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Solution

The fourth proportional to 1,045.46, 1,442.67 and 579.71 is: 799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.46 : 1,442.67 = 579.71 : x
  2. Step 2: Convert to fraction form
    1,045.46/1,442.67 = 579.71/x
  3. Step 3: Cross multiply
    1,045.46x = 1,442.67 × 579.71
  4. Step 4: Simplify right side
    1,045.46x = 836,330.23
  5. Step 5: Solve for x
    x = 836,330.23/1,045.46
  6. Step 6: Final answer
    x = 799.96

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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.