Home / 1,180,129.45-1,769,760.11-421,765.94

Finding the Fourth Proportional to 1,180,129.45, 1,769,760.11 and 421,765.94

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Solution

The fourth proportional to 1,180,129.45, 1,769,760.11 and 421,765.94 is: 632,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,129.45 : 1,769,760.11 = 421,765.94 : x
  2. Step 2: Convert to fraction form
    1,180,129.45/1,769,760.11 = 421,765.94/x
  3. Step 3: Cross multiply
    1,180,129.45x = 1,769,760.11 × 421,765.94
  4. Step 4: Simplify right side
    1,180,129.45x = 746,424,536,368.65
  5. Step 5: Solve for x
    x = 746,424,536,368.65/1,180,129.45
  6. Step 6: Final answer
    x = 632,493.78

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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.