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Finding the Fourth Proportional to 587.90, 882.12 and 578.18

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Solution

The fourth proportional to 587.90, 882.12 and 578.18 is: 867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.90 : 882.12 = 578.18 : x
  2. Step 2: Convert to fraction form
    587.90/882.12 = 578.18/x
  3. Step 3: Cross multiply
    587.90x = 882.12 × 578.18
  4. Step 4: Simplify right side
    587.90x = 510,024.14
  5. Step 5: Solve for x
    x = 510,024.14/587.90
  6. Step 6: Final answer
    x = 867.54

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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.