Home / 2,636,803.38-3,955,583.88-815,310.12

Finding the Fourth Proportional to 2,636,803.38, 3,955,583.88 and 815,310.12

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Solution

The fourth proportional to 2,636,803.38, 3,955,583.88 and 815,310.12 is: 1,223,082.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636,803.38 : 3,955,583.88 = 815,310.12 : x
  2. Step 2: Convert to fraction form
    2,636,803.38/3,955,583.88 = 815,310.12/x
  3. Step 3: Cross multiply
    2,636,803.38x = 3,955,583.88 × 815,310.12
  4. Step 4: Simplify right side
    2,636,803.38x = 3,225,027,567,872.87
  5. Step 5: Solve for x
    x = 3,225,027,567,872.87/2,636,803.38
  6. Step 6: Final answer
    x = 1,223,082.31

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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.