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Finding the Fourth Proportional to 816.05, 1,224.08 and 573.66

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Solution

The fourth proportional to 816.05, 1,224.08 and 573.66 is: 860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    816.05 : 1,224.08 = 573.66 : x
  2. Step 2: Convert to fraction form
    816.05/1,224.08 = 573.66/x
  3. Step 3: Cross multiply
    816.05x = 1,224.08 × 573.66
  4. Step 4: Simplify right side
    816.05x = 702,202.86
  5. Step 5: Solve for x
    x = 702,202.86/816.05
  6. Step 6: Final answer
    x = 860.49

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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.