Home / 1,296,407.85-1,789,044.30-723,447.87

Finding the Fourth Proportional to 1,296,407.85, 1,789,044.30 and 723,447.87

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Solution

The fourth proportional to 1,296,407.85, 1,789,044.30 and 723,447.87 is: 998,358.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,407.85 : 1,789,044.30 = 723,447.87 : x
  2. Step 2: Convert to fraction form
    1,296,407.85/1,789,044.30 = 723,447.87/x
  3. Step 3: Cross multiply
    1,296,407.85x = 1,789,044.30 × 723,447.87
  4. Step 4: Simplify right side
    1,296,407.85x = 1,294,280,288,170.64
  5. Step 5: Solve for x
    x = 1,294,280,288,170.64/1,296,407.85
  6. Step 6: Final answer
    x = 998,358.88

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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.