Home / 3,431,818.40-5,147,727.60-907,728.80

Finding the Fourth Proportional to 3,431,818.40, 5,147,727.60 and 907,728.80

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Solution

The fourth proportional to 3,431,818.40, 5,147,727.60 and 907,728.80 is: 1,361,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431,818.40 : 5,147,727.60 = 907,728.80 : x
  2. Step 2: Convert to fraction form
    3,431,818.40/5,147,727.60 = 907,728.80/x
  3. Step 3: Cross multiply
    3,431,818.40x = 5,147,727.60 × 907,728.80
  4. Step 4: Simplify right side
    3,431,818.40x = 4,672,740,597,074.88
  5. Step 5: Solve for x
    x = 4,672,740,597,074.88/3,431,818.40
  6. Step 6: Final answer
    x = 1,361,593.20

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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.