Home / 1,189,333.92-1,642,643-783,250.96

Finding the Fourth Proportional to 1,189,333.92, 1,642,643 and 783,250.96

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Solution

The fourth proportional to 1,189,333.92, 1,642,643 and 783,250.96 is: 1,081,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,333.92 : 1,642,643 = 783,250.96 : x
  2. Step 2: Convert to fraction form
    1,189,333.92/1,642,643 = 783,250.96/x
  3. Step 3: Cross multiply
    1,189,333.92x = 1,642,643 × 783,250.96
  4. Step 4: Simplify right side
    1,189,333.92x = 1,286,601,706,687.28
  5. Step 5: Solve for x
    x = 1,286,601,706,687.28/1,189,333.92
  6. Step 6: Final answer
    x = 1,081,783.41

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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.