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Finding the Fourth Proportional to 1,024.23, 1,534.34 and 676.50

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Solution

The fourth proportional to 1,024.23, 1,534.34 and 676.50 is: 1,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.23 : 1,534.34 = 676.50 : x
  2. Step 2: Convert to fraction form
    1,024.23/1,534.34 = 676.50/x
  3. Step 3: Cross multiply
    1,024.23x = 1,534.34 × 676.50
  4. Step 4: Simplify right side
    1,024.23x = 1,037,977.63
  5. Step 5: Solve for x
    x = 1,037,977.63/1,024.23
  6. Step 6: Final answer
    x = 1,013.42

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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.