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Finding the Fourth Proportional to 1,476.56, 2,215.08 and 552.44

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Solution

The fourth proportional to 1,476.56, 2,215.08 and 552.44 is: 828.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.56 : 2,215.08 = 552.44 : x
  2. Step 2: Convert to fraction form
    1,476.56/2,215.08 = 552.44/x
  3. Step 3: Cross multiply
    1,476.56x = 2,215.08 × 552.44
  4. Step 4: Simplify right side
    1,476.56x = 1,223,698.80
  5. Step 5: Solve for x
    x = 1,223,698.80/1,476.56
  6. Step 6: Final answer
    x = 828.75

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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.