Home / 1,581,553.21-2,182,553.89-856,400.90

Finding the Fourth Proportional to 1,581,553.21, 2,182,553.89 and 856,400.90

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Solution

The fourth proportional to 1,581,553.21, 2,182,553.89 and 856,400.90 is: 1,181,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,553.21 : 2,182,553.89 = 856,400.90 : x
  2. Step 2: Convert to fraction form
    1,581,553.21/2,182,553.89 = 856,400.90/x
  3. Step 3: Cross multiply
    1,581,553.21x = 2,182,553.89 × 856,400.90
  4. Step 4: Simplify right side
    1,581,553.21x = 1,869,141,119,734.85
  5. Step 5: Solve for x
    x = 1,869,141,119,734.85/1,581,553.21
  6. Step 6: Final answer
    x = 1,181,838.91

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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.