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Finding the Fourth Proportional to 715,828, 1,073,748.48 and 217,192

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Solution

The fourth proportional to 715,828, 1,073,748.48 and 217,192 is: 325,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,828 : 1,073,748.48 = 217,192 : x
  2. Step 2: Convert to fraction form
    715,828/1,073,748.48 = 217,192/x
  3. Step 3: Cross multiply
    715,828x = 1,073,748.48 × 217,192
  4. Step 4: Simplify right side
    715,828x = 233,209,579,868.16
  5. Step 5: Solve for x
    x = 233,209,579,868.16/715,828
  6. Step 6: Final answer
    x = 325,789.97

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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.