Home / 1,378,493.03-2,067,740.46-431,937.56

Finding the Fourth Proportional to 1,378,493.03, 2,067,740.46 and 431,937.56

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Solution

The fourth proportional to 1,378,493.03, 2,067,740.46 and 431,937.56 is: 647,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,493.03 : 2,067,740.46 = 431,937.56 : x
  2. Step 2: Convert to fraction form
    1,378,493.03/2,067,740.46 = 431,937.56/x
  3. Step 3: Cross multiply
    1,378,493.03x = 2,067,740.46 × 431,937.56
  4. Step 4: Simplify right side
    1,378,493.03x = 893,134,774,175.03
  5. Step 5: Solve for x
    x = 893,134,774,175.03/1,378,493.03
  6. Step 6: Final answer
    x = 647,906.63

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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.