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Finding the Fourth Proportional to 1,097.45, 1,514.45 and 612.32

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Solution

The fourth proportional to 1,097.45, 1,514.45 and 612.32 is: 844.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.45 : 1,514.45 = 612.32 : x
  2. Step 2: Convert to fraction form
    1,097.45/1,514.45 = 612.32/x
  3. Step 3: Cross multiply
    1,097.45x = 1,514.45 × 612.32
  4. Step 4: Simplify right side
    1,097.45x = 927,324.96
  5. Step 5: Solve for x
    x = 927,324.96/1,097.45
  6. Step 6: Final answer
    x = 844.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.