Home / 654,717.79-982,118.21-205,456.39

Finding the Fourth Proportional to 654,717.79, 982,118.21 and 205,456.39

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Solution

The fourth proportional to 654,717.79, 982,118.21 and 205,456.39 is: 308,197.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,717.79 : 982,118.21 = 205,456.39 : x
  2. Step 2: Convert to fraction form
    654,717.79/982,118.21 = 205,456.39/x
  3. Step 3: Cross multiply
    654,717.79x = 982,118.21 × 205,456.39
  4. Step 4: Simplify right side
    654,717.79x = 201,782,461,979.86
  5. Step 5: Solve for x
    x = 201,782,461,979.86/654,717.79
  6. Step 6: Final answer
    x = 308,197.62

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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.