Home / 525,982.05-725,684.30-321,820.13

Finding the Fourth Proportional to 525,982.05, 725,684.30 and 321,820.13

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Solution

The fourth proportional to 525,982.05, 725,684.30 and 321,820.13 is: 444,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,982.05 : 725,684.30 = 321,820.13 : x
  2. Step 2: Convert to fraction form
    525,982.05/725,684.30 = 321,820.13/x
  3. Step 3: Cross multiply
    525,982.05x = 725,684.30 × 321,820.13
  4. Step 4: Simplify right side
    525,982.05x = 233,539,815,764.96
  5. Step 5: Solve for x
    x = 233,539,815,764.96/525,982.05
  6. Step 6: Final answer
    x = 444,007.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.