Home / 548,084.20-821,348.70-404,811.40

Finding the Fourth Proportional to 548,084.20, 821,348.70 and 404,811.40

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Solution

The fourth proportional to 548,084.20, 821,348.70 and 404,811.40 is: 606,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,084.20 : 821,348.70 = 404,811.40 : x
  2. Step 2: Convert to fraction form
    548,084.20/821,348.70 = 404,811.40/x
  3. Step 3: Cross multiply
    548,084.20x = 821,348.70 × 404,811.40
  4. Step 4: Simplify right side
    548,084.20x = 332,491,317,135.18
  5. Step 5: Solve for x
    x = 332,491,317,135.18/548,084.20
  6. Step 6: Final answer
    x = 606,642.77

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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.