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Finding the Fourth Proportional to 655,022.26, 982,476.91 and 398,788.48

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Solution

The fourth proportional to 655,022.26, 982,476.91 and 398,788.48 is: 598,148.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,022.26 : 982,476.91 = 398,788.48 : x
  2. Step 2: Convert to fraction form
    655,022.26/982,476.91 = 398,788.48/x
  3. Step 3: Cross multiply
    655,022.26x = 982,476.91 × 398,788.48
  4. Step 4: Simplify right side
    655,022.26x = 391,800,475,300.58
  5. Step 5: Solve for x
    x = 391,800,475,300.58/655,022.26
  6. Step 6: Final answer
    x = 598,148.34

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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.