Home / 945,660.84-1,305,016.29-515,949.90

Finding the Fourth Proportional to 945,660.84, 1,305,016.29 and 515,949.90

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Solution

The fourth proportional to 945,660.84, 1,305,016.29 and 515,949.90 is: 712,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,660.84 : 1,305,016.29 = 515,949.90 : x
  2. Step 2: Convert to fraction form
    945,660.84/1,305,016.29 = 515,949.90/x
  3. Step 3: Cross multiply
    945,660.84x = 1,305,016.29 × 515,949.90
  4. Step 4: Simplify right side
    945,660.84x = 673,323,024,323.87
  5. Step 5: Solve for x
    x = 673,323,024,323.87/945,660.84
  6. Step 6: Final answer
    x = 712,013.22

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1.5x scale

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.