Home / 1,313,731.80-1,970,597.70-1,284,207.30

Finding the Fourth Proportional to 1,313,731.80, 1,970,597.70 and 1,284,207.30

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Solution

The fourth proportional to 1,313,731.80, 1,970,597.70 and 1,284,207.30 is: 1,926,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,731.80 : 1,970,597.70 = 1,284,207.30 : x
  2. Step 2: Convert to fraction form
    1,313,731.80/1,970,597.70 = 1,284,207.30/x
  3. Step 3: Cross multiply
    1,313,731.80x = 1,970,597.70 × 1,284,207.30
  4. Step 4: Simplify right side
    1,313,731.80x = 2,530,655,951,703.21
  5. Step 5: Solve for x
    x = 2,530,655,951,703.21/1,313,731.80
  6. Step 6: Final answer
    x = 1,926,310.95

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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.