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Finding the Fourth Proportional to 887.53, 1,224.73 and 533.51

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Solution

The fourth proportional to 887.53, 1,224.73 and 533.51 is: 736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.53 : 1,224.73 = 533.51 : x
  2. Step 2: Convert to fraction form
    887.53/1,224.73 = 533.51/x
  3. Step 3: Cross multiply
    887.53x = 1,224.73 × 533.51
  4. Step 4: Simplify right side
    887.53x = 653,396.91
  5. Step 5: Solve for x
    x = 653,396.91/887.53
  6. Step 6: Final answer
    x = 736.20

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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.