Home / 1,369,770.78-1,889,855.20-826,072.86

Finding the Fourth Proportional to 1,369,770.78, 1,889,855.20 and 826,072.86

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Solution

The fourth proportional to 1,369,770.78, 1,889,855.20 and 826,072.86 is: 1,139,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,770.78 : 1,889,855.20 = 826,072.86 : x
  2. Step 2: Convert to fraction form
    1,369,770.78/1,889,855.20 = 826,072.86/x
  3. Step 3: Cross multiply
    1,369,770.78x = 1,889,855.20 × 826,072.86
  4. Step 4: Simplify right side
    1,369,770.78x = 1,561,158,090,049.87
  5. Step 5: Solve for x
    x = 1,561,158,090,049.87/1,369,770.78
  6. Step 6: Final answer
    x = 1,139,722.14

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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.