Home / 654,464.58-981,696.75-205,187.76

Finding the Fourth Proportional to 654,464.58, 981,696.75 and 205,187.76

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Solution

The fourth proportional to 654,464.58, 981,696.75 and 205,187.76 is: 307,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,464.58 : 981,696.75 = 205,187.76 : x
  2. Step 2: Convert to fraction form
    654,464.58/981,696.75 = 205,187.76/x
  3. Step 3: Cross multiply
    654,464.58x = 981,696.75 × 205,187.76
  4. Step 4: Simplify right side
    654,464.58x = 201,432,157,131.78
  5. Step 5: Solve for x
    x = 201,432,157,131.78/654,464.58
  6. Step 6: Final answer
    x = 307,781.60

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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.