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Finding the Fourth Proportional to 901.80, 1,244.90 and 603.54

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Solution

The fourth proportional to 901.80, 1,244.90 and 603.54 is: 833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.80 : 1,244.90 = 603.54 : x
  2. Step 2: Convert to fraction form
    901.80/1,244.90 = 603.54/x
  3. Step 3: Cross multiply
    901.80x = 1,244.90 × 603.54
  4. Step 4: Simplify right side
    901.80x = 751,348.45
  5. Step 5: Solve for x
    x = 751,348.45/901.80
  6. Step 6: Final answer
    x = 833.17

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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.