Home / 1,581,057.45-2,181,859.99-855,905.16

Finding the Fourth Proportional to 1,581,057.45, 2,181,859.99 and 855,905.16

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Solution

The fourth proportional to 1,581,057.45, 2,181,859.99 and 855,905.16 is: 1,181,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,057.45 : 2,181,859.99 = 855,905.16 : x
  2. Step 2: Convert to fraction form
    1,581,057.45/2,181,859.99 = 855,905.16/x
  3. Step 3: Cross multiply
    1,581,057.45x = 2,181,859.99 × 855,905.16
  4. Step 4: Simplify right side
    1,581,057.45x = 1,867,465,216,285.78
  5. Step 5: Solve for x
    x = 1,867,465,216,285.78/1,581,057.45
  6. Step 6: Final answer
    x = 1,181,149.50

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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.