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Finding the Fourth Proportional to 1,301.92, 1,951.65 and 479.97

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Solution

The fourth proportional to 1,301.92, 1,951.65 and 479.97 is: 719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.92 : 1,951.65 = 479.97 : x
  2. Step 2: Convert to fraction form
    1,301.92/1,951.65 = 479.97/x
  3. Step 3: Cross multiply
    1,301.92x = 1,951.65 × 479.97
  4. Step 4: Simplify right side
    1,301.92x = 936,733.45
  5. Step 5: Solve for x
    x = 936,733.45/1,301.92
  6. Step 6: Final answer
    x = 719.50

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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.