Home / 769,420.87-1,061,767.74-425,239.01

Finding the Fourth Proportional to 769,420.87, 1,061,767.74 and 425,239.01

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Solution

The fourth proportional to 769,420.87, 1,061,767.74 and 425,239.01 is: 586,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,420.87 : 1,061,767.74 = 425,239.01 : x
  2. Step 2: Convert to fraction form
    769,420.87/1,061,767.74 = 425,239.01/x
  3. Step 3: Cross multiply
    769,420.87x = 1,061,767.74 × 425,239.01
  4. Step 4: Simplify right side
    769,420.87x = 451,505,062,607.54
  5. Step 5: Solve for x
    x = 451,505,062,607.54/769,420.87
  6. Step 6: Final answer
    x = 586,811.56

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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.