Home / 814,371.37-1,220,918.27-514,221.34

Finding the Fourth Proportional to 814,371.37, 1,220,918.27 and 514,221.34

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Solution

The fourth proportional to 814,371.37, 1,220,918.27 and 514,221.34 is: 770,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,371.37 : 1,220,918.27 = 514,221.34 : x
  2. Step 2: Convert to fraction form
    814,371.37/1,220,918.27 = 514,221.34/x
  3. Step 3: Cross multiply
    814,371.37x = 1,220,918.27 × 514,221.34
  4. Step 4: Simplify right side
    814,371.37x = 627,822,222,061.87
  5. Step 5: Solve for x
    x = 627,822,222,061.87/814,371.37
  6. Step 6: Final answer
    x = 770,928.65

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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.