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Finding the Fourth Proportional to 1,014.54, 1,521.80 and 581.38

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Solution

The fourth proportional to 1,014.54, 1,521.80 and 581.38 is: 872.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.54 : 1,521.80 = 581.38 : x
  2. Step 2: Convert to fraction form
    1,014.54/1,521.80 = 581.38/x
  3. Step 3: Cross multiply
    1,014.54x = 1,521.80 × 581.38
  4. Step 4: Simplify right side
    1,014.54x = 884,744.08
  5. Step 5: Solve for x
    x = 884,744.08/1,014.54
  6. Step 6: Final answer
    x = 872.06

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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.