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Finding the Fourth Proportional to 816.09, 1,126.18 and 466.75

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Solution

The fourth proportional to 816.09, 1,126.18 and 466.75 is: 644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816.09 : 1,126.18 = 466.75 : x
  2. Step 2: Convert to fraction form
    816.09/1,126.18 = 466.75/x
  3. Step 3: Cross multiply
    816.09x = 1,126.18 × 466.75
  4. Step 4: Simplify right side
    816.09x = 525,644.52
  5. Step 5: Solve for x
    x = 525,644.52/816.09
  6. Step 6: Final answer
    x = 644.10

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.