Home / 1,422,617.22-1,963,198.35-778,030.56

Finding the Fourth Proportional to 1,422,617.22, 1,963,198.35 and 778,030.56

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Solution

The fourth proportional to 1,422,617.22, 1,963,198.35 and 778,030.56 is: 1,073,674.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,617.22 : 1,963,198.35 = 778,030.56 : x
  2. Step 2: Convert to fraction form
    1,422,617.22/1,963,198.35 = 778,030.56/x
  3. Step 3: Cross multiply
    1,422,617.22x = 1,963,198.35 × 778,030.56
  4. Step 4: Simplify right side
    1,422,617.22x = 1,527,428,311,641.58
  5. Step 5: Solve for x
    x = 1,527,428,311,641.58/1,422,617.22
  6. Step 6: Final answer
    x = 1,073,674.84

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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.