Home / 1,220,202.29-1,683,876.24-668,917.01

Finding the Fourth Proportional to 1,220,202.29, 1,683,876.24 and 668,917.01

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Solution

The fourth proportional to 1,220,202.29, 1,683,876.24 and 668,917.01 is: 923,103.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,202.29 : 1,683,876.24 = 668,917.01 : x
  2. Step 2: Convert to fraction form
    1,220,202.29/1,683,876.24 = 668,917.01/x
  3. Step 3: Cross multiply
    1,220,202.29x = 1,683,876.24 × 668,917.01
  4. Step 4: Simplify right side
    1,220,202.29x = 1,126,373,451,251.46
  5. Step 5: Solve for x
    x = 1,126,373,451,251.46/1,220,202.29
  6. Step 6: Final answer
    x = 923,103.87

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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.