Home / 1,028,439.76-1,419,246.86-626,031.76

Finding the Fourth Proportional to 1,028,439.76, 1,419,246.86 and 626,031.76

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Solution

The fourth proportional to 1,028,439.76, 1,419,246.86 and 626,031.76 is: 863,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,439.76 : 1,419,246.86 = 626,031.76 : x
  2. Step 2: Convert to fraction form
    1,028,439.76/1,419,246.86 = 626,031.76/x
  3. Step 3: Cross multiply
    1,028,439.76x = 1,419,246.86 × 626,031.76
  4. Step 4: Simplify right side
    1,028,439.76x = 888,493,609,640.27
  5. Step 5: Solve for x
    x = 888,493,609,640.27/1,028,439.76
  6. Step 6: Final answer
    x = 863,923.82

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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.