Home / 1,292,480.91-1,782,462.51-809,090.10

Finding the Fourth Proportional to 1,292,480.91, 1,782,462.51 and 809,090.10

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Solution

The fourth proportional to 1,292,480.91, 1,782,462.51 and 809,090.10 is: 1,115,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,480.91 : 1,782,462.51 = 809,090.10 : x
  2. Step 2: Convert to fraction form
    1,292,480.91/1,782,462.51 = 809,090.10/x
  3. Step 3: Cross multiply
    1,292,480.91x = 1,782,462.51 × 809,090.10
  4. Step 4: Simplify right side
    1,292,480.91x = 1,442,172,770,462.15
  5. Step 5: Solve for x
    x = 1,442,172,770,462.15/1,292,480.91
  6. Step 6: Final answer
    x = 1,115,817.46

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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.