Home / 654,954.34-982,375.23-398,720.40

Finding the Fourth Proportional to 654,954.34, 982,375.23 and 398,720.40

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Solution

The fourth proportional to 654,954.34, 982,375.23 and 398,720.40 is: 598,046.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,954.34 : 982,375.23 = 398,720.40 : x
  2. Step 2: Convert to fraction form
    654,954.34/982,375.23 = 398,720.40/x
  3. Step 3: Cross multiply
    654,954.34x = 982,375.23 × 398,720.40
  4. Step 4: Simplify right side
    654,954.34x = 391,693,044,655.69
  5. Step 5: Solve for x
    x = 391,693,044,655.69/654,954.34
  6. Step 6: Final answer
    x = 598,046.34

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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.