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Finding the Fourth Proportional to 587.64, 879.60 and 483.96

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Solution

The fourth proportional to 587.64, 879.60 and 483.96 is: 724.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.64 : 879.60 = 483.96 : x
  2. Step 2: Convert to fraction form
    587.64/879.60 = 483.96/x
  3. Step 3: Cross multiply
    587.64x = 879.60 × 483.96
  4. Step 4: Simplify right side
    587.64x = 425,691.22
  5. Step 5: Solve for x
    x = 425,691.22/587.64
  6. Step 6: Final answer
    x = 724.41

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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.