Home / 1,311,689.01-1,810,259.97-767,791.83

Finding the Fourth Proportional to 1,311,689.01, 1,810,259.97 and 767,791.83

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Solution

The fourth proportional to 1,311,689.01, 1,810,259.97 and 767,791.83 is: 1,059,628.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,689.01 : 1,810,259.97 = 767,791.83 : x
  2. Step 2: Convert to fraction form
    1,311,689.01/1,810,259.97 = 767,791.83/x
  3. Step 3: Cross multiply
    1,311,689.01x = 1,810,259.97 × 767,791.83
  4. Step 4: Simplify right side
    1,311,689.01x = 1,389,902,815,142.05
  5. Step 5: Solve for x
    x = 1,389,902,815,142.05/1,311,689.01
  6. Step 6: Final answer
    x = 1,059,628.31

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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.