Home / 1,218,716.43-1,681,808.00-674,840.55

Finding the Fourth Proportional to 1,218,716.43, 1,681,808.00 and 674,840.55

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Solution

The fourth proportional to 1,218,716.43, 1,681,808.00 and 674,840.55 is: 931,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,716.43 : 1,681,808.00 = 674,840.55 : x
  2. Step 2: Convert to fraction form
    1,218,716.43/1,681,808.00 = 674,840.55/x
  3. Step 3: Cross multiply
    1,218,716.43x = 1,681,808.00 × 674,840.55
  4. Step 4: Simplify right side
    1,218,716.43x = 1,134,952,227,557.29
  5. Step 5: Solve for x
    x = 1,134,952,227,557.29/1,218,716.43
  6. Step 6: Final answer
    x = 931,268.50

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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.