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Finding the Fourth Proportional to 571.74, 788.74 and 461.37

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Solution

The fourth proportional to 571.74, 788.74 and 461.37 is: 636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.74 : 788.74 = 461.37 : x
  2. Step 2: Convert to fraction form
    571.74/788.74 = 461.37/x
  3. Step 3: Cross multiply
    571.74x = 788.74 × 461.37
  4. Step 4: Simplify right side
    571.74x = 363,900.97
  5. Step 5: Solve for x
    x = 363,900.97/571.74
  6. Step 6: Final answer
    x = 636.48

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.