Home / 654,386.14-981,579.48-205,142.32

Finding the Fourth Proportional to 654,386.14, 981,579.48 and 205,142.32

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Solution

The fourth proportional to 654,386.14, 981,579.48 and 205,142.32 is: 307,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,386.14 : 981,579.48 = 205,142.32 : x
  2. Step 2: Convert to fraction form
    654,386.14/981,579.48 = 205,142.32/x
  3. Step 3: Cross multiply
    654,386.14x = 981,579.48 × 205,142.32
  4. Step 4: Simplify right side
    654,386.14x = 201,363,491,791.59
  5. Step 5: Solve for x
    x = 201,363,491,791.59/654,386.14
  6. Step 6: Final answer
    x = 307,713.56

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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.