Home / 1,297,400.76-1,945,900.89-432,850.96

Finding the Fourth Proportional to 1,297,400.76, 1,945,900.89 and 432,850.96

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Solution

The fourth proportional to 1,297,400.76, 1,945,900.89 and 432,850.96 is: 649,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,400.76 : 1,945,900.89 = 432,850.96 : x
  2. Step 2: Convert to fraction form
    1,297,400.76/1,945,900.89 = 432,850.96/x
  3. Step 3: Cross multiply
    1,297,400.76x = 1,945,900.89 × 432,850.96
  4. Step 4: Simplify right side
    1,297,400.76x = 842,285,062,354.48
  5. Step 5: Solve for x
    x = 842,285,062,354.48/1,297,400.76
  6. Step 6: Final answer
    x = 649,209.62

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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.