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Finding the Fourth Proportional to 800.89, 1,104.23 and 552.22

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Solution

The fourth proportional to 800.89, 1,104.23 and 552.22 is: 761.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    800.89 : 1,104.23 = 552.22 : x
  2. Step 2: Convert to fraction form
    800.89/1,104.23 = 552.22/x
  3. Step 3: Cross multiply
    800.89x = 1,104.23 × 552.22
  4. Step 4: Simplify right side
    800.89x = 609,776.51
  5. Step 5: Solve for x
    x = 609,776.51/800.89
  6. Step 6: Final answer
    x = 761.38

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.