Home / 1,686,858.80-2,327,923.28-922,912.40

Finding the Fourth Proportional to 1,686,858.80, 2,327,923.28 and 922,912.40

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Solution

The fourth proportional to 1,686,858.80, 2,327,923.28 and 922,912.40 is: 1,273,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,858.80 : 2,327,923.28 = 922,912.40 : x
  2. Step 2: Convert to fraction form
    1,686,858.80/2,327,923.28 = 922,912.40/x
  3. Step 3: Cross multiply
    1,686,858.80x = 2,327,923.28 × 922,912.40
  4. Step 4: Simplify right side
    1,686,858.80x = 2,148,469,261,360.67
  5. Step 5: Solve for x
    x = 2,148,469,261,360.67/1,686,858.80
  6. Step 6: Final answer
    x = 1,273,650.92

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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.