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Finding the Fourth Proportional to 901.41, 1,243.69 and 603.09

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Solution

The fourth proportional to 901.41, 1,243.69 and 603.09 is: 832.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.41 : 1,243.69 = 603.09 : x
  2. Step 2: Convert to fraction form
    901.41/1,243.69 = 603.09/x
  3. Step 3: Cross multiply
    901.41x = 1,243.69 × 603.09
  4. Step 4: Simplify right side
    901.41x = 750,053.99
  5. Step 5: Solve for x
    x = 750,053.99/901.41
  6. Step 6: Final answer
    x = 832.09

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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.