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Finding the Fourth Proportional to 500,997.84, 691,420.76 and 274,687.08

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Solution

The fourth proportional to 500,997.84, 691,420.76 and 274,687.08 is: 379,092.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,997.84 : 691,420.76 = 274,687.08 : x
  2. Step 2: Convert to fraction form
    500,997.84/691,420.76 = 274,687.08/x
  3. Step 3: Cross multiply
    500,997.84x = 691,420.76 × 274,687.08
  4. Step 4: Simplify right side
    500,997.84x = 189,924,353,410.37
  5. Step 5: Solve for x
    x = 189,924,353,410.37/500,997.84
  6. Step 6: Final answer
    x = 379,092.16

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1.5x scale

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.