Home / 654,398.45-982,122.62-338,945.57

Finding the Fourth Proportional to 654,398.45, 982,122.62 and 338,945.57

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Solution

The fourth proportional to 654,398.45, 982,122.62 and 338,945.57 is: 508,690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,398.45 : 982,122.62 = 338,945.57 : x
  2. Step 2: Convert to fraction form
    654,398.45/982,122.62 = 338,945.57/x
  3. Step 3: Cross multiply
    654,398.45x = 982,122.62 × 338,945.57
  4. Step 4: Simplify right side
    654,398.45x = 332,886,111,245.79
  5. Step 5: Solve for x
    x = 332,886,111,245.79/654,398.45
  6. Step 6: Final answer
    x = 508,690.25

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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.