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Finding the Fourth Proportional to 833.68, 1,248.36 and 695.98

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Solution

The fourth proportional to 833.68, 1,248.36 and 695.98 is: 1,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.68 : 1,248.36 = 695.98 : x
  2. Step 2: Convert to fraction form
    833.68/1,248.36 = 695.98/x
  3. Step 3: Cross multiply
    833.68x = 1,248.36 × 695.98
  4. Step 4: Simplify right side
    833.68x = 868,833.59
  5. Step 5: Solve for x
    x = 868,833.59/833.68
  6. Step 6: Final answer
    x = 1,042.17

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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.