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Finding the Fourth Proportional to 695.95, 1,045.01 and 371.95

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Solution

The fourth proportional to 695.95, 1,045.01 and 371.95 is: 558.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.95 : 1,045.01 = 371.95 : x
  2. Step 2: Convert to fraction form
    695.95/1,045.01 = 371.95/x
  3. Step 3: Cross multiply
    695.95x = 1,045.01 × 371.95
  4. Step 4: Simplify right side
    695.95x = 388,691.47
  5. Step 5: Solve for x
    x = 388,691.47/695.95
  6. Step 6: Final answer
    x = 558.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.