Home / 1,400,039.87-2,099,356.46-815,987.51

Finding the Fourth Proportional to 1,400,039.87, 2,099,356.46 and 815,987.51

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Solution

The fourth proportional to 1,400,039.87, 2,099,356.46 and 815,987.51 is: 1,223,571.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,039.87 : 2,099,356.46 = 815,987.51 : x
  2. Step 2: Convert to fraction form
    1,400,039.87/2,099,356.46 = 815,987.51/x
  3. Step 3: Cross multiply
    1,400,039.87x = 2,099,356.46 × 815,987.51
  4. Step 4: Simplify right side
    1,400,039.87x = 1,713,048,635,821.09
  5. Step 5: Solve for x
    x = 1,713,048,635,821.09/1,400,039.87
  6. Step 6: Final answer
    x = 1,223,571.33

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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.