Home / 769,501.07-1,061,892.92-420,625.97

Finding the Fourth Proportional to 769,501.07, 1,061,892.92 and 420,625.97

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Solution

The fourth proportional to 769,501.07, 1,061,892.92 and 420,625.97 is: 580,453.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,501.07 : 1,061,892.92 = 420,625.97 : x
  2. Step 2: Convert to fraction form
    769,501.07/1,061,892.92 = 420,625.97/x
  3. Step 3: Cross multiply
    769,501.07x = 1,061,892.92 × 420,625.97
  4. Step 4: Simplify right side
    769,501.07x = 446,659,732,098.54
  5. Step 5: Solve for x
    x = 446,659,732,098.54/769,501.07
  6. Step 6: Final answer
    x = 580,453.69

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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.