Home / 548,242.20-821,946.51-379,313.46

Finding the Fourth Proportional to 548,242.20, 821,946.51 and 379,313.46

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Solution

The fourth proportional to 548,242.20, 821,946.51 and 379,313.46 is: 568,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,242.20 : 821,946.51 = 379,313.46 : x
  2. Step 2: Convert to fraction form
    548,242.20/821,946.51 = 379,313.46/x
  3. Step 3: Cross multiply
    548,242.20x = 821,946.51 × 379,313.46
  4. Step 4: Simplify right side
    548,242.20x = 311,775,374,643.03
  5. Step 5: Solve for x
    x = 311,775,374,643.03/548,242.20
  6. Step 6: Final answer
    x = 568,681.82

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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.