Home / 1,221,204.34-1,685,273.70-677,393.56

Finding the Fourth Proportional to 1,221,204.34, 1,685,273.70 and 677,393.56

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Solution

The fourth proportional to 1,221,204.34, 1,685,273.70 and 677,393.56 is: 934,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,204.34 : 1,685,273.70 = 677,393.56 : x
  2. Step 2: Convert to fraction form
    1,221,204.34/1,685,273.70 = 677,393.56/x
  3. Step 3: Cross multiply
    1,221,204.34x = 1,685,273.70 × 677,393.56
  4. Step 4: Simplify right side
    1,221,204.34x = 1,141,593,551,217.37
  5. Step 5: Solve for x
    x = 1,141,593,551,217.37/1,221,204.34
  6. Step 6: Final answer
    x = 934,809.61

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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.