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Finding the Fourth Proportional to 888.06, 1,330.57 and 497.81

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Solution

The fourth proportional to 888.06, 1,330.57 and 497.81 is: 745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.06 : 1,330.57 = 497.81 : x
  2. Step 2: Convert to fraction form
    888.06/1,330.57 = 497.81/x
  3. Step 3: Cross multiply
    888.06x = 1,330.57 × 497.81
  4. Step 4: Simplify right side
    888.06x = 662,373.78
  5. Step 5: Solve for x
    x = 662,373.78/888.06
  6. Step 6: Final answer
    x = 745.87

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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.