Home / 1,457,768.36-2,011,720.92-813,186.56

Finding the Fourth Proportional to 1,457,768.36, 2,011,720.92 and 813,186.56

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Solution

The fourth proportional to 1,457,768.36, 2,011,720.92 and 813,186.56 is: 1,122,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,768.36 : 2,011,720.92 = 813,186.56 : x
  2. Step 2: Convert to fraction form
    1,457,768.36/2,011,720.92 = 813,186.56/x
  3. Step 3: Cross multiply
    1,457,768.36x = 2,011,720.92 × 813,186.56
  4. Step 4: Simplify right side
    1,457,768.36x = 1,635,904,414,614.84
  5. Step 5: Solve for x
    x = 1,635,904,414,614.84/1,457,768.36
  6. Step 6: Final answer
    x = 1,122,197.78

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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.