Home / 1,218,717.43-1,681,809.38-674,841.55

Finding the Fourth Proportional to 1,218,717.43, 1,681,809.38 and 674,841.55

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Solution

The fourth proportional to 1,218,717.43, 1,681,809.38 and 674,841.55 is: 931,269.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,717.43 : 1,681,809.38 = 674,841.55 : x
  2. Step 2: Convert to fraction form
    1,218,717.43/1,681,809.38 = 674,841.55/x
  3. Step 3: Cross multiply
    1,218,717.43x = 1,681,809.38 × 674,841.55
  4. Step 4: Simplify right side
    1,218,717.43x = 1,134,954,848,803.74
  5. Step 5: Solve for x
    x = 1,134,954,848,803.74/1,218,717.43
  6. Step 6: Final answer
    x = 931,269.89

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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.