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Finding the Fourth Proportional to 521.69, 719.01 and 461.34

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Solution

The fourth proportional to 521.69, 719.01 and 461.34 is: 635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.69 : 719.01 = 461.34 : x
  2. Step 2: Convert to fraction form
    521.69/719.01 = 461.34/x
  3. Step 3: Cross multiply
    521.69x = 719.01 × 461.34
  4. Step 4: Simplify right side
    521.69x = 331,708.07
  5. Step 5: Solve for x
    x = 331,708.07/521.69
  6. Step 6: Final answer
    x = 635.84

Related Problems

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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.