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Finding the Fourth Proportional to 901.58, 1,244.41 and 543.06

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Solution

The fourth proportional to 901.58, 1,244.41 and 543.06 is: 749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.58 : 1,244.41 = 543.06 : x
  2. Step 2: Convert to fraction form
    901.58/1,244.41 = 543.06/x
  3. Step 3: Cross multiply
    901.58x = 1,244.41 × 543.06
  4. Step 4: Simplify right side
    901.58x = 675,787.94
  5. Step 5: Solve for x
    x = 675,787.94/901.58
  6. Step 6: Final answer
    x = 749.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.