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Finding the Fourth Proportional to 274,444.08, 411,608.52 and 77,406

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Solution

The fourth proportional to 274,444.08, 411,608.52 and 77,406 is: 116,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,444.08 : 411,608.52 = 77,406 : x
  2. Step 2: Convert to fraction form
    274,444.08/411,608.52 = 77,406/x
  3. Step 3: Cross multiply
    274,444.08x = 411,608.52 × 77,406
  4. Step 4: Simplify right side
    274,444.08x = 31,860,969,099.12
  5. Step 5: Solve for x
    x = 31,860,969,099.12/274,444.08
  6. Step 6: Final answer
    x = 116,092.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.