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Finding the Fourth Proportional to 587.05, 879.19 and 465.38

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Solution

The fourth proportional to 587.05, 879.19 and 465.38 is: 696.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.05 : 879.19 = 465.38 : x
  2. Step 2: Convert to fraction form
    587.05/879.19 = 465.38/x
  3. Step 3: Cross multiply
    587.05x = 879.19 × 465.38
  4. Step 4: Simplify right side
    587.05x = 409,155.18
  5. Step 5: Solve for x
    x = 409,155.18/587.05
  6. Step 6: Final answer
    x = 696.97

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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.