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Finding the Fourth Proportional to 503,478.37, 694,803.05 and 274,035.12

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Solution

The fourth proportional to 503,478.37, 694,803.05 and 274,035.12 is: 378,170.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,478.37 : 694,803.05 = 274,035.12 : x
  2. Step 2: Convert to fraction form
    503,478.37/694,803.05 = 274,035.12/x
  3. Step 3: Cross multiply
    503,478.37x = 694,803.05 × 274,035.12
  4. Step 4: Simplify right side
    503,478.37x = 190,400,437,183.12
  5. Step 5: Solve for x
    x = 190,400,437,183.12/503,478.37
  6. Step 6: Final answer
    x = 378,170.04

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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.