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Finding the Fourth Proportional to 1,229.79, 1,845.06 and 536.13

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Solution

The fourth proportional to 1,229.79, 1,845.06 and 536.13 is: 804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.79 : 1,845.06 = 536.13 : x
  2. Step 2: Convert to fraction form
    1,229.79/1,845.06 = 536.13/x
  3. Step 3: Cross multiply
    1,229.79x = 1,845.06 × 536.13
  4. Step 4: Simplify right side
    1,229.79x = 989,192.02
  5. Step 5: Solve for x
    x = 989,192.02/1,229.79
  6. Step 6: Final answer
    x = 804.36

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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.