Home / 1,279,674.48-1,920,675-681,136.32

Finding the Fourth Proportional to 1,279,674.48, 1,920,675 and 681,136.32

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Solution

The fourth proportional to 1,279,674.48, 1,920,675 and 681,136.32 is: 1,022,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,674.48 : 1,920,675 = 681,136.32 : x
  2. Step 2: Convert to fraction form
    1,279,674.48/1,920,675 = 681,136.32/x
  3. Step 3: Cross multiply
    1,279,674.48x = 1,920,675 × 681,136.32
  4. Step 4: Simplify right side
    1,279,674.48x = 1,308,241,501,416
  5. Step 5: Solve for x
    x = 1,308,241,501,416/1,279,674.48
  6. Step 6: Final answer
    x = 1,022,323.66

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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.