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Finding the Fourth Proportional to 591.55, 886.04 and 487.67

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Solution

The fourth proportional to 591.55, 886.04 and 487.67 is: 730.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.55 : 886.04 = 487.67 : x
  2. Step 2: Convert to fraction form
    591.55/886.04 = 487.67/x
  3. Step 3: Cross multiply
    591.55x = 886.04 × 487.67
  4. Step 4: Simplify right side
    591.55x = 432,095.07
  5. Step 5: Solve for x
    x = 432,095.07/591.55
  6. Step 6: Final answer
    x = 730.44

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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.