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Finding the Fourth Proportional to 833.64, 1,248.89 and 468.69

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Solution

The fourth proportional to 833.64, 1,248.89 and 468.69 is: 702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.64 : 1,248.89 = 468.69 : x
  2. Step 2: Convert to fraction form
    833.64/1,248.89 = 468.69/x
  3. Step 3: Cross multiply
    833.64x = 1,248.89 × 468.69
  4. Step 4: Simplify right side
    833.64x = 585,339.91
  5. Step 5: Solve for x
    x = 585,339.91/833.64
  6. Step 6: Final answer
    x = 702.15

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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.