Home / 1,378,379.94-2,067,699.57-405,744.86

Finding the Fourth Proportional to 1,378,379.94, 2,067,699.57 and 405,744.86

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Solution

The fourth proportional to 1,378,379.94, 2,067,699.57 and 405,744.86 is: 608,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,379.94 : 2,067,699.57 = 405,744.86 : x
  2. Step 2: Convert to fraction form
    1,378,379.94/2,067,699.57 = 405,744.86/x
  3. Step 3: Cross multiply
    1,378,379.94x = 2,067,699.57 × 405,744.86
  4. Step 4: Simplify right side
    1,378,379.94x = 838,958,472,551.71
  5. Step 5: Solve for x
    x = 838,958,472,551.71/1,378,379.94
  6. Step 6: Final answer
    x = 608,655.46

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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.