Home / 1,272,488.12-1,756,067.21-691,750.32

Finding the Fourth Proportional to 1,272,488.12, 1,756,067.21 and 691,750.32

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Solution

The fourth proportional to 1,272,488.12, 1,756,067.21 and 691,750.32 is: 954,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,488.12 : 1,756,067.21 = 691,750.32 : x
  2. Step 2: Convert to fraction form
    1,272,488.12/1,756,067.21 = 691,750.32/x
  3. Step 3: Cross multiply
    1,272,488.12x = 1,756,067.21 × 691,750.32
  4. Step 4: Simplify right side
    1,272,488.12x = 1,214,760,054,459.01
  5. Step 5: Solve for x
    x = 1,214,760,054,459.01/1,272,488.12
  6. Step 6: Final answer
    x = 954,633.71

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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.