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Finding the Fourth Proportional to 901.73, 1,244.37 and 487.73

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Solution

The fourth proportional to 901.73, 1,244.37 and 487.73 is: 673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.73 : 1,244.37 = 487.73 : x
  2. Step 2: Convert to fraction form
    901.73/1,244.37 = 487.73/x
  3. Step 3: Cross multiply
    901.73x = 1,244.37 × 487.73
  4. Step 4: Simplify right side
    901.73x = 606,910.36
  5. Step 5: Solve for x
    x = 606,910.36/901.73
  6. Step 6: Final answer
    x = 673.05

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Double scale
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1.5x scale

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.