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Finding the Fourth Proportional to 558,288.56, 770,436.07 and 303,644.00

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Solution

The fourth proportional to 558,288.56, 770,436.07 and 303,644.00 is: 419,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,288.56 : 770,436.07 = 303,644.00 : x
  2. Step 2: Convert to fraction form
    558,288.56/770,436.07 = 303,644.00/x
  3. Step 3: Cross multiply
    558,288.56x = 770,436.07 × 303,644.00
  4. Step 4: Simplify right side
    558,288.56x = 233,938,285,427.79
  5. Step 5: Solve for x
    x = 233,938,285,427.79/558,288.56
  6. Step 6: Final answer
    x = 419,027.55

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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.