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Finding the Fourth Proportional to 494,377.80, 682,259.73 and 279,505.05

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Solution

The fourth proportional to 494,377.80, 682,259.73 and 279,505.05 is: 385,727.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,377.80 : 682,259.73 = 279,505.05 : x
  2. Step 2: Convert to fraction form
    494,377.80/682,259.73 = 279,505.05/x
  3. Step 3: Cross multiply
    494,377.80x = 682,259.73 × 279,505.05
  4. Step 4: Simplify right side
    494,377.80x = 190,695,039,946.64
  5. Step 5: Solve for x
    x = 190,695,039,946.64/494,377.80
  6. Step 6: Final answer
    x = 385,727.35

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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.