Home / 654,380.63-981,583.25-205,091.55

Finding the Fourth Proportional to 654,380.63, 981,583.25 and 205,091.55

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Solution

The fourth proportional to 654,380.63, 981,583.25 and 205,091.55 is: 307,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,380.63 : 981,583.25 = 205,091.55 : x
  2. Step 2: Convert to fraction form
    654,380.63/981,583.25 = 205,091.55/x
  3. Step 3: Cross multiply
    654,380.63x = 981,583.25 × 205,091.55
  4. Step 4: Simplify right side
    654,380.63x = 201,314,429,171.08
  5. Step 5: Solve for x
    x = 201,314,429,171.08/654,380.63
  6. Step 6: Final answer
    x = 307,641.18

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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.