Home / 725,923-1,001,657.10-419,995.72

Finding the Fourth Proportional to 725,923, 1,001,657.10 and 419,995.72

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Solution

The fourth proportional to 725,923, 1,001,657.10 and 419,995.72 is: 579,526.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,923 : 1,001,657.10 = 419,995.72 : x
  2. Step 2: Convert to fraction form
    725,923/1,001,657.10 = 419,995.72/x
  3. Step 3: Cross multiply
    725,923x = 1,001,657.10 × 419,995.72
  4. Step 4: Simplify right side
    725,923x = 420,691,694,907.61
  5. Step 5: Solve for x
    x = 420,691,694,907.61/725,923
  6. Step 6: Final answer
    x = 579,526.61

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Similar ratio
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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.