Home / 1,378,135.62-2,067,196.14-479,570.22

Finding the Fourth Proportional to 1,378,135.62, 2,067,196.14 and 479,570.22

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Solution

The fourth proportional to 1,378,135.62, 2,067,196.14 and 479,570.22 is: 719,352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,135.62 : 2,067,196.14 = 479,570.22 : x
  2. Step 2: Convert to fraction form
    1,378,135.62/2,067,196.14 = 479,570.22/x
  3. Step 3: Cross multiply
    1,378,135.62x = 2,067,196.14 × 479,570.22
  4. Step 4: Simplify right side
    1,378,135.62x = 991,365,707,642.95
  5. Step 5: Solve for x
    x = 991,365,707,642.95/1,378,135.62
  6. Step 6: Final answer
    x = 719,352.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.