Home / 1,581,100.76-2,181,909.04-855,943.20

Finding the Fourth Proportional to 1,581,100.76, 2,181,909.04 and 855,943.20

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Solution

The fourth proportional to 1,581,100.76, 2,181,909.04 and 855,943.20 is: 1,181,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,100.76 : 2,181,909.04 = 855,943.20 : x
  2. Step 2: Convert to fraction form
    1,581,100.76/2,181,909.04 = 855,943.20/x
  3. Step 3: Cross multiply
    1,581,100.76x = 2,181,909.04 × 855,943.20
  4. Step 4: Simplify right side
    1,581,100.76x = 1,867,590,205,806.53
  5. Step 5: Solve for x
    x = 1,867,590,205,806.53/1,581,100.76
  6. Step 6: Final answer
    x = 1,181,196.20

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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.