Home / 1,329,832.86-1,994,789.61-431,249.82

Finding the Fourth Proportional to 1,329,832.86, 1,994,789.61 and 431,249.82

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Solution

The fourth proportional to 1,329,832.86, 1,994,789.61 and 431,249.82 is: 646,887.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,832.86 : 1,994,789.61 = 431,249.82 : x
  2. Step 2: Convert to fraction form
    1,329,832.86/1,994,789.61 = 431,249.82/x
  3. Step 3: Cross multiply
    1,329,832.86x = 1,994,789.61 × 431,249.82
  4. Step 4: Simplify right side
    1,329,832.86x = 860,252,660,250.37
  5. Step 5: Solve for x
    x = 860,252,660,250.37/1,329,832.86
  6. Step 6: Final answer
    x = 646,887.81

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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.