Home / 769,811.73-1,062,321.30-425,638.59

Finding the Fourth Proportional to 769,811.73, 1,062,321.30 and 425,638.59

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Solution

The fourth proportional to 769,811.73, 1,062,321.30 and 425,638.59 is: 587,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,811.73 : 1,062,321.30 = 425,638.59 : x
  2. Step 2: Convert to fraction form
    769,811.73/1,062,321.30 = 425,638.59/x
  3. Step 3: Cross multiply
    769,811.73x = 1,062,321.30 × 425,638.59
  4. Step 4: Simplify right side
    769,811.73x = 452,164,940,258.97
  5. Step 5: Solve for x
    x = 452,164,940,258.97/769,811.73
  6. Step 6: Final answer
    x = 587,370.81

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1.5x scale

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.