Home / 1,543,388.77-2,129,491.78-890,214.49

Finding the Fourth Proportional to 1,543,388.77, 2,129,491.78 and 890,214.49

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Solution

The fourth proportional to 1,543,388.77, 2,129,491.78 and 890,214.49 is: 1,228,274.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,388.77 : 2,129,491.78 = 890,214.49 : x
  2. Step 2: Convert to fraction form
    1,543,388.77/2,129,491.78 = 890,214.49/x
  3. Step 3: Cross multiply
    1,543,388.77x = 2,129,491.78 × 890,214.49
  4. Step 4: Simplify right side
    1,543,388.77x = 1,895,704,438,891.89
  5. Step 5: Solve for x
    x = 1,895,704,438,891.89/1,543,388.77
  6. Step 6: Final answer
    x = 1,228,274.09

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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.