Home / 1,218,584.74-1,681,741.63-674,771.14

Finding the Fourth Proportional to 1,218,584.74, 1,681,741.63 and 674,771.14

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Solution

The fourth proportional to 1,218,584.74, 1,681,741.63 and 674,771.14 is: 931,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,584.74 : 1,681,741.63 = 674,771.14 : x
  2. Step 2: Convert to fraction form
    1,218,584.74/1,681,741.63 = 674,771.14/x
  3. Step 3: Cross multiply
    1,218,584.74x = 1,681,741.63 × 674,771.14
  4. Step 4: Simplify right side
    1,218,584.74x = 1,134,790,716,860.56
  5. Step 5: Solve for x
    x = 1,134,790,716,860.56/1,218,584.74
  6. Step 6: Final answer
    x = 931,236.61

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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.