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Finding the Fourth Proportional to 1,363.09, 2,044.74 and 818.77

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Solution

The fourth proportional to 1,363.09, 2,044.74 and 818.77 is: 1,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.09 : 2,044.74 = 818.77 : x
  2. Step 2: Convert to fraction form
    1,363.09/2,044.74 = 818.77/x
  3. Step 3: Cross multiply
    1,363.09x = 2,044.74 × 818.77
  4. Step 4: Simplify right side
    1,363.09x = 1,674,171.77
  5. Step 5: Solve for x
    x = 1,674,171.77/1,363.09
  6. Step 6: Final answer
    x = 1,228.22

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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.