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Finding the Fourth Proportional to 1,036.38, 1,553.01 and 625.06

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Solution

The fourth proportional to 1,036.38, 1,553.01 and 625.06 is: 936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.38 : 1,553.01 = 625.06 : x
  2. Step 2: Convert to fraction form
    1,036.38/1,553.01 = 625.06/x
  3. Step 3: Cross multiply
    1,036.38x = 1,553.01 × 625.06
  4. Step 4: Simplify right side
    1,036.38x = 970,724.43
  5. Step 5: Solve for x
    x = 970,724.43/1,036.38
  6. Step 6: Final answer
    x = 936.65

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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.