Home / 1,969,321.53-2,717,711.77-1,098,147.72

Finding the Fourth Proportional to 1,969,321.53, 2,717,711.77 and 1,098,147.72

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Solution

The fourth proportional to 1,969,321.53, 2,717,711.77 and 1,098,147.72 is: 1,515,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,321.53 : 2,717,711.77 = 1,098,147.72 : x
  2. Step 2: Convert to fraction form
    1,969,321.53/2,717,711.77 = 1,098,147.72/x
  3. Step 3: Cross multiply
    1,969,321.53x = 2,717,711.77 × 1,098,147.72
  4. Step 4: Simplify right side
    1,969,321.53x = 2,984,448,995,406.77
  5. Step 5: Solve for x
    x = 2,984,448,995,406.77/1,969,321.53
  6. Step 6: Final answer
    x = 1,515,470.66

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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.