Home / 1,724,418.72-2,379,453.57-979,318.76

Finding the Fourth Proportional to 1,724,418.72, 2,379,453.57 and 979,318.76

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Solution

The fourth proportional to 1,724,418.72, 2,379,453.57 and 979,318.76 is: 1,351,321.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724,418.72 : 2,379,453.57 = 979,318.76 : x
  2. Step 2: Convert to fraction form
    1,724,418.72/2,379,453.57 = 979,318.76/x
  3. Step 3: Cross multiply
    1,724,418.72x = 2,379,453.57 × 979,318.76
  4. Step 4: Simplify right side
    1,724,418.72x = 2,330,243,507,752.71
  5. Step 5: Solve for x
    x = 2,330,243,507,752.71/1,724,418.72
  6. Step 6: Final answer
    x = 1,351,321.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.