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Finding the Fourth Proportional to 695.61, 960.03 and 415.98

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Solution

The fourth proportional to 695.61, 960.03 and 415.98 is: 574.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.61 : 960.03 = 415.98 : x
  2. Step 2: Convert to fraction form
    695.61/960.03 = 415.98/x
  3. Step 3: Cross multiply
    695.61x = 960.03 × 415.98
  4. Step 4: Simplify right side
    695.61x = 399,353.28
  5. Step 5: Solve for x
    x = 399,353.28/695.61
  6. Step 6: Final answer
    x = 574.11

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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.