Home / 1,290,179.52-1,780,493.48-709,446.84

Finding the Fourth Proportional to 1,290,179.52, 1,780,493.48 and 709,446.84

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Solution

The fourth proportional to 1,290,179.52, 1,780,493.48 and 709,446.84 is: 979,061.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,179.52 : 1,780,493.48 = 709,446.84 : x
  2. Step 2: Convert to fraction form
    1,290,179.52/1,780,493.48 = 709,446.84/x
  3. Step 3: Cross multiply
    1,290,179.52x = 1,780,493.48 × 709,446.84
  4. Step 4: Simplify right side
    1,290,179.52x = 1,263,165,469,479.37
  5. Step 5: Solve for x
    x = 1,263,165,469,479.37/1,290,179.52
  6. Step 6: Final answer
    x = 979,061.79

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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.