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Finding the Fourth Proportional to 520,967.12, 718,729.08 and 327,261.04

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Solution

The fourth proportional to 520,967.12, 718,729.08 and 327,261.04 is: 451,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,967.12 : 718,729.08 = 327,261.04 : x
  2. Step 2: Convert to fraction form
    520,967.12/718,729.08 = 327,261.04/x
  3. Step 3: Cross multiply
    520,967.12x = 718,729.08 × 327,261.04
  4. Step 4: Simplify right side
    520,967.12x = 235,212,026,199.04
  5. Step 5: Solve for x
    x = 235,212,026,199.04/520,967.12
  6. Step 6: Final answer
    x = 451,491.12

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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.