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Finding the Fourth Proportional to 1,029.50, 1,544.25 and 452.39

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Solution

The fourth proportional to 1,029.50, 1,544.25 and 452.39 is: 678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.50 : 1,544.25 = 452.39 : x
  2. Step 2: Convert to fraction form
    1,029.50/1,544.25 = 452.39/x
  3. Step 3: Cross multiply
    1,029.50x = 1,544.25 × 452.39
  4. Step 4: Simplify right side
    1,029.50x = 698,603.26
  5. Step 5: Solve for x
    x = 698,603.26/1,029.50
  6. Step 6: Final answer
    x = 678.59

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Double scale
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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.