Home / 1,422,786.28-1,963,507.86-819,368.68

Finding the Fourth Proportional to 1,422,786.28, 1,963,507.86 and 819,368.68

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Solution

The fourth proportional to 1,422,786.28, 1,963,507.86 and 819,368.68 is: 1,130,764.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,786.28 : 1,963,507.86 = 819,368.68 : x
  2. Step 2: Convert to fraction form
    1,422,786.28/1,963,507.86 = 819,368.68/x
  3. Step 3: Cross multiply
    1,422,786.28x = 1,963,507.86 × 819,368.68
  4. Step 4: Simplify right side
    1,422,786.28x = 1,608,836,843,417.83
  5. Step 5: Solve for x
    x = 1,608,836,843,417.83/1,422,786.28
  6. Step 6: Final answer
    x = 1,130,764.94

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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.