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Finding the Fourth Proportional to 558,426.94, 770,606.79 and 303,772.66

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Solution

The fourth proportional to 558,426.94, 770,606.79 and 303,772.66 is: 419,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,426.94 : 770,606.79 = 303,772.66 : x
  2. Step 2: Convert to fraction form
    558,426.94/770,606.79 = 303,772.66/x
  3. Step 3: Cross multiply
    558,426.94x = 770,606.79 × 303,772.66
  4. Step 4: Simplify right side
    558,426.94x = 234,089,274,412.36
  5. Step 5: Solve for x
    x = 234,089,274,412.36/558,426.94
  6. Step 6: Final answer
    x = 419,194.09

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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.