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Finding the Fourth Proportional to 521.96, 718.62 and 468.32

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Solution

The fourth proportional to 521.96, 718.62 and 468.32 is: 644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.96 : 718.62 = 468.32 : x
  2. Step 2: Convert to fraction form
    521.96/718.62 = 468.32/x
  3. Step 3: Cross multiply
    521.96x = 718.62 × 468.32
  4. Step 4: Simplify right side
    521.96x = 336,544.12
  5. Step 5: Solve for x
    x = 336,544.12/521.96
  6. Step 6: Final answer
    x = 644.77

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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.