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Finding the Fourth Proportional to 1,066.26, 1,598.97 and 518.28

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Solution

The fourth proportional to 1,066.26, 1,598.97 and 518.28 is: 777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.26 : 1,598.97 = 518.28 : x
  2. Step 2: Convert to fraction form
    1,066.26/1,598.97 = 518.28/x
  3. Step 3: Cross multiply
    1,066.26x = 1,598.97 × 518.28
  4. Step 4: Simplify right side
    1,066.26x = 828,714.17
  5. Step 5: Solve for x
    x = 828,714.17/1,066.26
  6. Step 6: Final answer
    x = 777.22

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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.