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Finding the Fourth Proportional to 1,045.46, 1,442.73 and 573.36

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Solution

The fourth proportional to 1,045.46, 1,442.73 and 573.36 is: 791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.46 : 1,442.73 = 573.36 : x
  2. Step 2: Convert to fraction form
    1,045.46/1,442.73 = 573.36/x
  3. Step 3: Cross multiply
    1,045.46x = 1,442.73 × 573.36
  4. Step 4: Simplify right side
    1,045.46x = 827,200.44
  5. Step 5: Solve for x
    x = 827,200.44/1,045.46
  6. Step 6: Final answer
    x = 791.23

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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.