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Finding the Fourth Proportional to 883.77, 1,325.85 and 396.86

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Solution

The fourth proportional to 883.77, 1,325.85 and 396.86 is: 595.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.77 : 1,325.85 = 396.86 : x
  2. Step 2: Convert to fraction form
    883.77/1,325.85 = 396.86/x
  3. Step 3: Cross multiply
    883.77x = 1,325.85 × 396.86
  4. Step 4: Simplify right side
    883.77x = 526,176.83
  5. Step 5: Solve for x
    x = 526,176.83/883.77
  6. Step 6: Final answer
    x = 595.38

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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.