Home / 947,375.74-1,307,378.82-511,793.20

Finding the Fourth Proportional to 947,375.74, 1,307,378.82 and 511,793.20

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Solution

The fourth proportional to 947,375.74, 1,307,378.82 and 511,793.20 is: 706,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,375.74 : 1,307,378.82 = 511,793.20 : x
  2. Step 2: Convert to fraction form
    947,375.74/1,307,378.82 = 511,793.20/x
  3. Step 3: Cross multiply
    947,375.74x = 1,307,378.82 × 511,793.20
  4. Step 4: Simplify right side
    947,375.74x = 669,107,589,900.02
  5. Step 5: Solve for x
    x = 669,107,589,900.02/947,375.74
  6. Step 6: Final answer
    x = 706,274.78

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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.