Home / 1,165,020.67-1,606,900.35-777,640.78

Finding the Fourth Proportional to 1,165,020.67, 1,606,900.35 and 777,640.78

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Solution

The fourth proportional to 1,165,020.67, 1,606,900.35 and 777,640.78 is: 1,072,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,020.67 : 1,606,900.35 = 777,640.78 : x
  2. Step 2: Convert to fraction form
    1,165,020.67/1,606,900.35 = 777,640.78/x
  3. Step 3: Cross multiply
    1,165,020.67x = 1,606,900.35 × 777,640.78
  4. Step 4: Simplify right side
    1,165,020.67x = 1,249,591,241,556.27
  5. Step 5: Solve for x
    x = 1,249,591,241,556.27/1,165,020.67
  6. Step 6: Final answer
    x = 1,072,591.48

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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.