Home / 1,491,213.80-2,057,898.48-812,149.76

Finding the Fourth Proportional to 1,491,213.80, 2,057,898.48 and 812,149.76

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Solution

The fourth proportional to 1,491,213.80, 2,057,898.48 and 812,149.76 is: 1,120,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,213.80 : 2,057,898.48 = 812,149.76 : x
  2. Step 2: Convert to fraction form
    1,491,213.80/2,057,898.48 = 812,149.76/x
  3. Step 3: Cross multiply
    1,491,213.80x = 2,057,898.48 × 812,149.76
  4. Step 4: Simplify right side
    1,491,213.80x = 1,671,321,756,636.36
  5. Step 5: Solve for x
    x = 1,671,321,756,636.36/1,491,213.80
  6. Step 6: Final answer
    x = 1,120,779.43

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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.