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Finding the Fourth Proportional to 558,614.50, 770,881.53 and 303,961.30

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Solution

The fourth proportional to 558,614.50, 770,881.53 and 303,961.30 is: 419,463.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,614.50 : 770,881.53 = 303,961.30 : x
  2. Step 2: Convert to fraction form
    558,614.50/770,881.53 = 303,961.30/x
  3. Step 3: Cross multiply
    558,614.50x = 770,881.53 × 303,961.30
  4. Step 4: Simplify right side
    558,614.50x = 234,318,152,004.79
  5. Step 5: Solve for x
    x = 234,318,152,004.79/558,614.50
  6. Step 6: Final answer
    x = 419,463.07

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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.