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Finding the Fourth Proportional to 1,014.19, 1,521.26 and 554.89

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Solution

The fourth proportional to 1,014.19, 1,521.26 and 554.89 is: 832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.19 : 1,521.26 = 554.89 : x
  2. Step 2: Convert to fraction form
    1,014.19/1,521.26 = 554.89/x
  3. Step 3: Cross multiply
    1,014.19x = 1,521.26 × 554.89
  4. Step 4: Simplify right side
    1,014.19x = 844,129.19
  5. Step 5: Solve for x
    x = 844,129.19/1,014.19
  6. Step 6: Final answer
    x = 832.32

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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.