Home / 808,843.70-1,213,265.55-543,422.90

Finding the Fourth Proportional to 808,843.70, 1,213,265.55 and 543,422.90

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Solution

The fourth proportional to 808,843.70, 1,213,265.55 and 543,422.90 is: 815,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,843.70 : 1,213,265.55 = 543,422.90 : x
  2. Step 2: Convert to fraction form
    808,843.70/1,213,265.55 = 543,422.90/x
  3. Step 3: Cross multiply
    808,843.70x = 1,213,265.55 × 543,422.90
  4. Step 4: Simplify right side
    808,843.70x = 659,316,283,651.10
  5. Step 5: Solve for x
    x = 659,316,283,651.10/808,843.70
  6. Step 6: Final answer
    x = 815,134.35

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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.