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Finding the Fourth Proportional to 901.41, 1,244.44 and 623.14

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Solution

The fourth proportional to 901.41, 1,244.44 and 623.14 is: 860.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.41 : 1,244.44 = 623.14 : x
  2. Step 2: Convert to fraction form
    901.41/1,244.44 = 623.14/x
  3. Step 3: Cross multiply
    901.41x = 1,244.44 × 623.14
  4. Step 4: Simplify right side
    901.41x = 775,460.34
  5. Step 5: Solve for x
    x = 775,460.34/901.41
  6. Step 6: Final answer
    x = 860.27

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.