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Finding the Fourth Proportional to 580.89, 870.87 and 303.12

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Solution

The fourth proportional to 580.89, 870.87 and 303.12 is: 454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.89 : 870.87 = 303.12 : x
  2. Step 2: Convert to fraction form
    580.89/870.87 = 303.12/x
  3. Step 3: Cross multiply
    580.89x = 870.87 × 303.12
  4. Step 4: Simplify right side
    580.89x = 263,978.11
  5. Step 5: Solve for x
    x = 263,978.11/580.89
  6. Step 6: Final answer
    x = 454.44

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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.