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Finding the Fourth Proportional to 548,862.90, 821,982.15 and 443,886.90

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Solution

The fourth proportional to 548,862.90, 821,982.15 and 443,886.90 is: 664,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,862.90 : 821,982.15 = 443,886.90 : x
  2. Step 2: Convert to fraction form
    548,862.90/821,982.15 = 443,886.90/x
  3. Step 3: Cross multiply
    548,862.90x = 821,982.15 × 443,886.90
  4. Step 4: Simplify right side
    548,862.90x = 364,867,108,418.84
  5. Step 5: Solve for x
    x = 364,867,108,418.84/548,862.90
  6. Step 6: Final answer
    x = 664,769.12

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1.5x scale

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.