Home / 1,045.29-1,442.58-579.54

Finding the Fourth Proportional to 1,045.29, 1,442.58 and 579.54

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Solution

The fourth proportional to 1,045.29, 1,442.58 and 579.54 is: 799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.29 : 1,442.58 = 579.54 : x
  2. Step 2: Convert to fraction form
    1,045.29/1,442.58 = 579.54/x
  3. Step 3: Cross multiply
    1,045.29x = 1,442.58 × 579.54
  4. Step 4: Simplify right side
    1,045.29x = 836,032.81
  5. Step 5: Solve for x
    x = 836,032.81/1,045.29
  6. Step 6: Final answer
    x = 799.81

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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.