Home / 769,788.80-1,062,265.69-425,604.81

Finding the Fourth Proportional to 769,788.80, 1,062,265.69 and 425,604.81

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Solution

The fourth proportional to 769,788.80, 1,062,265.69 and 425,604.81 is: 587,310.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,788.80 : 1,062,265.69 = 425,604.81 : x
  2. Step 2: Convert to fraction form
    769,788.80/1,062,265.69 = 425,604.81/x
  3. Step 3: Cross multiply
    769,788.80x = 1,062,265.69 × 425,604.81
  4. Step 4: Simplify right side
    769,788.80x = 452,105,387,161.97
  5. Step 5: Solve for x
    x = 452,105,387,161.97/769,788.80
  6. Step 6: Final answer
    x = 587,310.94

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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.