Home / 1,045.26-1,442.39-573.15

Finding the Fourth Proportional to 1,045.26, 1,442.39 and 573.15

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Solution

The fourth proportional to 1,045.26, 1,442.39 and 573.15 is: 790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.26 : 1,442.39 = 573.15 : x
  2. Step 2: Convert to fraction form
    1,045.26/1,442.39 = 573.15/x
  3. Step 3: Cross multiply
    1,045.26x = 1,442.39 × 573.15
  4. Step 4: Simplify right side
    1,045.26x = 826,695.75
  5. Step 5: Solve for x
    x = 826,695.75/1,045.26
  6. Step 6: Final answer
    x = 790.90

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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.