Home / 1,378,379.15-2,067,698.38-405,744.07

Finding the Fourth Proportional to 1,378,379.15, 2,067,698.38 and 405,744.07

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Solution

The fourth proportional to 1,378,379.15, 2,067,698.38 and 405,744.07 is: 608,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,379.15 : 2,067,698.38 = 405,744.07 : x
  2. Step 2: Convert to fraction form
    1,378,379.15/2,067,698.38 = 405,744.07/x
  3. Step 3: Cross multiply
    1,378,379.15x = 2,067,698.38 × 405,744.07
  4. Step 4: Simplify right side
    1,378,379.15x = 838,956,356,233.61
  5. Step 5: Solve for x
    x = 838,956,356,233.61/1,378,379.15
  6. Step 6: Final answer
    x = 608,654.27

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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.