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Finding the Fourth Proportional to 901.24, 1,244.46 and 607.48

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Solution

The fourth proportional to 901.24, 1,244.46 and 607.48 is: 838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.24 : 1,244.46 = 607.48 : x
  2. Step 2: Convert to fraction form
    901.24/1,244.46 = 607.48/x
  3. Step 3: Cross multiply
    901.24x = 1,244.46 × 607.48
  4. Step 4: Simplify right side
    901.24x = 755,984.56
  5. Step 5: Solve for x
    x = 755,984.56/901.24
  6. Step 6: Final answer
    x = 838.83

Related Problems

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Half scale
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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.