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Finding the Fourth Proportional to 523,185.08, 721,780.62 and 379,627.16

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Solution

The fourth proportional to 523,185.08, 721,780.62 and 379,627.16 is: 523,729.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,185.08 : 721,780.62 = 379,627.16 : x
  2. Step 2: Convert to fraction form
    523,185.08/721,780.62 = 379,627.16/x
  3. Step 3: Cross multiply
    523,185.08x = 721,780.62 × 379,627.16
  4. Step 4: Simplify right side
    523,185.08x = 274,007,526,913.64
  5. Step 5: Solve for x
    x = 274,007,526,913.64/523,185.08
  6. Step 6: Final answer
    x = 523,729.63

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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.