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Finding the Fourth Proportional to 1,294.54, 1,940.46 and 563.92

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Solution

The fourth proportional to 1,294.54, 1,940.46 and 563.92 is: 845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.54 : 1,940.46 = 563.92 : x
  2. Step 2: Convert to fraction form
    1,294.54/1,940.46 = 563.92/x
  3. Step 3: Cross multiply
    1,294.54x = 1,940.46 × 563.92
  4. Step 4: Simplify right side
    1,294.54x = 1,094,264.51
  5. Step 5: Solve for x
    x = 1,094,264.51/1,294.54
  6. Step 6: Final answer
    x = 845.29

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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.