Home / 945,981.25-1,305,481.80-516,288.94

Finding the Fourth Proportional to 945,981.25, 1,305,481.80 and 516,288.94

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Solution

The fourth proportional to 945,981.25, 1,305,481.80 and 516,288.94 is: 712,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,981.25 : 1,305,481.80 = 516,288.94 : x
  2. Step 2: Convert to fraction form
    945,981.25/1,305,481.80 = 516,288.94/x
  3. Step 3: Cross multiply
    945,981.25x = 1,305,481.80 × 516,288.94
  4. Step 4: Simplify right side
    945,981.25x = 674,005,814,711.29
  5. Step 5: Solve for x
    x = 674,005,814,711.29/945,981.25
  6. Step 6: Final answer
    x = 712,493.84

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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.