Home / 1,218,555.98-1,681,659.83-674,691.80

Finding the Fourth Proportional to 1,218,555.98, 1,681,659.83 and 674,691.80

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Solution

The fourth proportional to 1,218,555.98, 1,681,659.83 and 674,691.80 is: 931,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,555.98 : 1,681,659.83 = 674,691.80 : x
  2. Step 2: Convert to fraction form
    1,218,555.98/1,681,659.83 = 674,691.80/x
  3. Step 3: Cross multiply
    1,218,555.98x = 1,681,659.83 × 674,691.80
  4. Step 4: Simplify right side
    1,218,555.98x = 1,134,602,097,690.39
  5. Step 5: Solve for x
    x = 1,134,602,097,690.39/1,218,555.98
  6. Step 6: Final answer
    x = 931,103.80

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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.