Home / 1,224.78-1,837.28-403.06

Finding the Fourth Proportional to 1,224.78, 1,837.28 and 403.06

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Solution

The fourth proportional to 1,224.78, 1,837.28 and 403.06 is: 604.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.78 : 1,837.28 = 403.06 : x
  2. Step 2: Convert to fraction form
    1,224.78/1,837.28 = 403.06/x
  3. Step 3: Cross multiply
    1,224.78x = 1,837.28 × 403.06
  4. Step 4: Simplify right side
    1,224.78x = 740,534.08
  5. Step 5: Solve for x
    x = 740,534.08/1,224.78
  6. Step 6: Final answer
    x = 604.63

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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.