Home / 1,218,528.88-1,681,622.42-674,664.69

Finding the Fourth Proportional to 1,218,528.88, 1,681,622.42 and 674,664.69

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Solution

The fourth proportional to 1,218,528.88, 1,681,622.42 and 674,664.69 is: 931,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,528.88 : 1,681,622.42 = 674,664.69 : x
  2. Step 2: Convert to fraction form
    1,218,528.88/1,681,622.42 = 674,664.69/x
  3. Step 3: Cross multiply
    1,218,528.88x = 1,681,622.42 × 674,664.69
  4. Step 4: Simplify right side
    1,218,528.88x = 1,134,531,275,414.10
  5. Step 5: Solve for x
    x = 1,134,531,275,414.10/1,218,528.88
  6. Step 6: Final answer
    x = 931,066.38

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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.