Home / 1,218,168.77-1,681,087.73-674,354.84

Finding the Fourth Proportional to 1,218,168.77, 1,681,087.73 and 674,354.84

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Solution

The fourth proportional to 1,218,168.77, 1,681,087.73 and 674,354.84 is: 930,617.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,168.77 : 1,681,087.73 = 674,354.84 : x
  2. Step 2: Convert to fraction form
    1,218,168.77/1,681,087.73 = 674,354.84/x
  3. Step 3: Cross multiply
    1,218,168.77x = 1,681,087.73 × 674,354.84
  4. Step 4: Simplify right side
    1,218,168.77x = 1,133,649,635,412.90
  5. Step 5: Solve for x
    x = 1,133,649,635,412.90/1,218,168.77
  6. Step 6: Final answer
    x = 930,617.88

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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.