Home / 945,817.78-1,305,260.05-516,121.49

Finding the Fourth Proportional to 945,817.78, 1,305,260.05 and 516,121.49

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Solution

The fourth proportional to 945,817.78, 1,305,260.05 and 516,121.49 is: 712,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,817.78 : 1,305,260.05 = 516,121.49 : x
  2. Step 2: Convert to fraction form
    945,817.78/1,305,260.05 = 516,121.49/x
  3. Step 3: Cross multiply
    945,817.78x = 1,305,260.05 × 516,121.49
  4. Step 4: Simplify right side
    945,817.78x = 673,672,761,843.48
  5. Step 5: Solve for x
    x = 673,672,761,843.48/945,817.78
  6. Step 6: Final answer
    x = 712,264.85

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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.