Home / 1,292,472.83-1,782,451.38-809,082.05

Finding the Fourth Proportional to 1,292,472.83, 1,782,451.38 and 809,082.05

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Solution

The fourth proportional to 1,292,472.83, 1,782,451.38 and 809,082.05 is: 1,115,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,472.83 : 1,782,451.38 = 809,082.05 : x
  2. Step 2: Convert to fraction form
    1,292,472.83/1,782,451.38 = 809,082.05/x
  3. Step 3: Cross multiply
    1,292,472.83x = 1,782,451.38 × 809,082.05
  4. Step 4: Simplify right side
    1,292,472.83x = 1,442,149,407,643.47
  5. Step 5: Solve for x
    x = 1,442,149,407,643.47/1,292,472.83
  6. Step 6: Final answer
    x = 1,115,806.37

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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.