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Finding the Fourth Proportional to 1,224.95, 1,837.25 and 494.35

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Solution

The fourth proportional to 1,224.95, 1,837.25 and 494.35 is: 741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.95 : 1,837.25 = 494.35 : x
  2. Step 2: Convert to fraction form
    1,224.95/1,837.25 = 494.35/x
  3. Step 3: Cross multiply
    1,224.95x = 1,837.25 × 494.35
  4. Step 4: Simplify right side
    1,224.95x = 908,243.10
  5. Step 5: Solve for x
    x = 908,243.10/1,224.95
  6. Step 6: Final answer
    x = 741.46

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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.