Home / 1,420,471.50-1,960,239.06-775,891.86

Finding the Fourth Proportional to 1,420,471.50, 1,960,239.06 and 775,891.86

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Solution

The fourth proportional to 1,420,471.50, 1,960,239.06 and 775,891.86 is: 1,070,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,471.50 : 1,960,239.06 = 775,891.86 : x
  2. Step 2: Convert to fraction form
    1,420,471.50/1,960,239.06 = 775,891.86/x
  3. Step 3: Cross multiply
    1,420,471.50x = 1,960,239.06 × 775,891.86
  4. Step 4: Simplify right side
    1,420,471.50x = 1,520,933,530,308.05
  5. Step 5: Solve for x
    x = 1,520,933,530,308.05/1,420,471.50
  6. Step 6: Final answer
    x = 1,070,724.43

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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.