Home / 919,921.40-1,377,257.70-814,945.40

Finding the Fourth Proportional to 919,921.40, 1,377,257.70 and 814,945.40

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Solution

The fourth proportional to 919,921.40, 1,377,257.70 and 814,945.40 is: 1,220,093.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,921.40 : 1,377,257.70 = 814,945.40 : x
  2. Step 2: Convert to fraction form
    919,921.40/1,377,257.70 = 814,945.40/x
  3. Step 3: Cross multiply
    919,921.40x = 1,377,257.70 × 814,945.40
  4. Step 4: Simplify right side
    919,921.40x = 1,122,389,827,229.58
  5. Step 5: Solve for x
    x = 1,122,389,827,229.58/919,921.40
  6. Step 6: Final answer
    x = 1,220,093.18

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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.