Home / 1,243,234.20-1,866,233.70-770,453.40

Finding the Fourth Proportional to 1,243,234.20, 1,866,233.70 and 770,453.40

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Solution

The fourth proportional to 1,243,234.20, 1,866,233.70 and 770,453.40 is: 1,156,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,234.20 : 1,866,233.70 = 770,453.40 : x
  2. Step 2: Convert to fraction form
    1,243,234.20/1,866,233.70 = 770,453.40/x
  3. Step 3: Cross multiply
    1,243,234.20x = 1,866,233.70 × 770,453.40
  4. Step 4: Simplify right side
    1,243,234.20x = 1,437,846,099,359.58
  5. Step 5: Solve for x
    x = 1,437,846,099,359.58/1,243,234.20
  6. Step 6: Final answer
    x = 1,156,536.80

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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.