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Finding the Fourth Proportional to 379,566, 523,755.72 and 209,777.04

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Solution

The fourth proportional to 379,566, 523,755.72 and 209,777.04 is: 289,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,566 : 523,755.72 = 209,777.04 : x
  2. Step 2: Convert to fraction form
    379,566/523,755.72 = 209,777.04/x
  3. Step 3: Cross multiply
    379,566x = 523,755.72 × 209,777.04
  4. Step 4: Simplify right side
    379,566x = 109,871,924,624.67
  5. Step 5: Solve for x
    x = 109,871,924,624.67/379,566
  6. Step 6: Final answer
    x = 289,467.25

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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.