Home / 1,720,400.90-2,579,372.56-809,073.14

Finding the Fourth Proportional to 1,720,400.90, 2,579,372.56 and 809,073.14

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Solution

The fourth proportional to 1,720,400.90, 2,579,372.56 and 809,073.14 is: 1,213,031.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,400.90 : 2,579,372.56 = 809,073.14 : x
  2. Step 2: Convert to fraction form
    1,720,400.90/2,579,372.56 = 809,073.14/x
  3. Step 3: Cross multiply
    1,720,400.90x = 2,579,372.56 × 809,073.14
  4. Step 4: Simplify right side
    1,720,400.90x = 2,086,901,056,349.04
  5. Step 5: Solve for x
    x = 2,086,901,056,349.04/1,720,400.90
  6. Step 6: Final answer
    x = 1,213,031.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.