Home / 718,612.50-1,077,605.79-206,164.56

Finding the Fourth Proportional to 718,612.50, 1,077,605.79 and 206,164.56

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Solution

The fourth proportional to 718,612.50, 1,077,605.79 and 206,164.56 is: 309,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,612.50 : 1,077,605.79 = 206,164.56 : x
  2. Step 2: Convert to fraction form
    718,612.50/1,077,605.79 = 206,164.56/x
  3. Step 3: Cross multiply
    718,612.50x = 1,077,605.79 × 206,164.56
  4. Step 4: Simplify right side
    718,612.50x = 222,164,123,548.80
  5. Step 5: Solve for x
    x = 222,164,123,548.80/718,612.50
  6. Step 6: Final answer
    x = 309,157.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.