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Finding the Fourth Proportional to 888.37, 1,225.86 and 534.40

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Solution

The fourth proportional to 888.37, 1,225.86 and 534.40 is: 737.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.37 : 1,225.86 = 534.40 : x
  2. Step 2: Convert to fraction form
    888.37/1,225.86 = 534.40/x
  3. Step 3: Cross multiply
    888.37x = 1,225.86 × 534.40
  4. Step 4: Simplify right side
    888.37x = 655,099.58
  5. Step 5: Solve for x
    x = 655,099.58/888.37
  6. Step 6: Final answer
    x = 737.42

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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.