Home / 1,296,406.85-1,789,042.92-723,446.87

Finding the Fourth Proportional to 1,296,406.85, 1,789,042.92 and 723,446.87

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Solution

The fourth proportional to 1,296,406.85, 1,789,042.92 and 723,446.87 is: 998,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,406.85 : 1,789,042.92 = 723,446.87 : x
  2. Step 2: Convert to fraction form
    1,296,406.85/1,789,042.92 = 723,446.87/x
  3. Step 3: Cross multiply
    1,296,406.85x = 1,789,042.92 × 723,446.87
  4. Step 4: Simplify right side
    1,296,406.85x = 1,294,277,489,111.52
  5. Step 5: Solve for x
    x = 1,294,277,489,111.52/1,296,406.85
  6. Step 6: Final answer
    x = 998,357.49

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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.