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Finding the Fourth Proportional to 908.52, 1,360.72 and 888.01

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Solution

The fourth proportional to 908.52, 1,360.72 and 888.01 is: 1,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    908.52 : 1,360.72 = 888.01 : x
  2. Step 2: Convert to fraction form
    908.52/1,360.72 = 888.01/x
  3. Step 3: Cross multiply
    908.52x = 1,360.72 × 888.01
  4. Step 4: Simplify right side
    908.52x = 1,208,338.59
  5. Step 5: Solve for x
    x = 1,208,338.59/908.52
  6. Step 6: Final answer
    x = 1,330.02

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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.