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Finding the Fourth Proportional to 792.43, 1,189.96 and 534.09

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Solution

The fourth proportional to 792.43, 1,189.96 and 534.09 is: 802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.43 : 1,189.96 = 534.09 : x
  2. Step 2: Convert to fraction form
    792.43/1,189.96 = 534.09/x
  3. Step 3: Cross multiply
    792.43x = 1,189.96 × 534.09
  4. Step 4: Simplify right side
    792.43x = 635,545.74
  5. Step 5: Solve for x
    x = 635,545.74/792.43
  6. Step 6: Final answer
    x = 802.03

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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.