Home / 816,963.32-1,225,619.94-343,375.76

Finding the Fourth Proportional to 816,963.32, 1,225,619.94 and 343,375.76

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Solution

The fourth proportional to 816,963.32, 1,225,619.94 and 343,375.76 is: 515,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,963.32 : 1,225,619.94 = 343,375.76 : x
  2. Step 2: Convert to fraction form
    816,963.32/1,225,619.94 = 343,375.76/x
  3. Step 3: Cross multiply
    816,963.32x = 1,225,619.94 × 343,375.76
  4. Step 4: Simplify right side
    816,963.32x = 420,848,178,368.65
  5. Step 5: Solve for x
    x = 420,848,178,368.65/816,963.32
  6. Step 6: Final answer
    x = 515,137.18

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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.