Home / 1,227,285.78-1,840,072.77-543,800.90

Finding the Fourth Proportional to 1,227,285.78, 1,840,072.77 and 543,800.90

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Solution

The fourth proportional to 1,227,285.78, 1,840,072.77 and 543,800.90 is: 815,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,285.78 : 1,840,072.77 = 543,800.90 : x
  2. Step 2: Convert to fraction form
    1,227,285.78/1,840,072.77 = 543,800.90/x
  3. Step 3: Cross multiply
    1,227,285.78x = 1,840,072.77 × 543,800.90
  4. Step 4: Simplify right side
    1,227,285.78x = 1,000,633,219,191.13
  5. Step 5: Solve for x
    x = 1,000,633,219,191.13/1,227,285.78
  6. Step 6: Final answer
    x = 815,322.10

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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.