Home / 1,419,125.76-1,958,417.28-815,650.56

Finding the Fourth Proportional to 1,419,125.76, 1,958,417.28 and 815,650.56

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Solution

The fourth proportional to 1,419,125.76, 1,958,417.28 and 815,650.56 is: 1,125,611.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,125.76 : 1,958,417.28 = 815,650.56 : x
  2. Step 2: Convert to fraction form
    1,419,125.76/1,958,417.28 = 815,650.56/x
  3. Step 3: Cross multiply
    1,419,125.76x = 1,958,417.28 × 815,650.56
  4. Step 4: Simplify right side
    1,419,125.76x = 1,597,384,151,145.68
  5. Step 5: Solve for x
    x = 1,597,384,151,145.68/1,419,125.76
  6. Step 6: Final answer
    x = 1,125,611.41

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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.