Home / 654,318.63-981,478.17-205,074.35

Finding the Fourth Proportional to 654,318.63, 981,478.17 and 205,074.35

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Solution

The fourth proportional to 654,318.63, 981,478.17 and 205,074.35 is: 307,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,318.63 : 981,478.17 = 205,074.35 : x
  2. Step 2: Convert to fraction form
    654,318.63/981,478.17 = 205,074.35/x
  3. Step 3: Cross multiply
    654,318.63x = 981,478.17 × 205,074.35
  4. Step 4: Simplify right side
    654,318.63x = 201,275,992,844.55
  5. Step 5: Solve for x
    x = 201,275,992,844.55/654,318.63
  6. Step 6: Final answer
    x = 307,611.59

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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.