Home / 1,292,507.96-1,782,499.77-809,117.10

Finding the Fourth Proportional to 1,292,507.96, 1,782,499.77 and 809,117.10

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Solution

The fourth proportional to 1,292,507.96, 1,782,499.77 and 809,117.10 is: 1,115,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,507.96 : 1,782,499.77 = 809,117.10 : x
  2. Step 2: Convert to fraction form
    1,292,507.96/1,782,499.77 = 809,117.10/x
  3. Step 3: Cross multiply
    1,292,507.96x = 1,782,499.77 × 809,117.10
  4. Step 4: Simplify right side
    1,292,507.96x = 1,442,251,044,653.07
  5. Step 5: Solve for x
    x = 1,442,251,044,653.07/1,292,507.96
  6. Step 6: Final answer
    x = 1,115,854.68

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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.