Home / 548,243.20-821,948.01-379,314.46

Finding the Fourth Proportional to 548,243.20, 821,948.01 and 379,314.46

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Solution

The fourth proportional to 548,243.20, 821,948.01 and 379,314.46 is: 568,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,243.20 : 821,948.01 = 379,314.46 : x
  2. Step 2: Convert to fraction form
    548,243.20/821,948.01 = 379,314.46/x
  3. Step 3: Cross multiply
    548,243.20x = 821,948.01 × 379,314.46
  4. Step 4: Simplify right side
    548,243.20x = 311,776,765,561.23
  5. Step 5: Solve for x
    x = 311,776,765,561.23/548,243.20
  6. Step 6: Final answer
    x = 568,683.32

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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.