Home / 1,180,127.45-1,769,757.12-421,763.94

Finding the Fourth Proportional to 1,180,127.45, 1,769,757.12 and 421,763.94

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Solution

The fourth proportional to 1,180,127.45, 1,769,757.12 and 421,763.94 is: 632,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,127.45 : 1,769,757.12 = 421,763.94 : x
  2. Step 2: Convert to fraction form
    1,180,127.45/1,769,757.12 = 421,763.94/x
  3. Step 3: Cross multiply
    1,180,127.45x = 1,769,757.12 × 421,763.94
  4. Step 4: Simplify right side
    1,180,127.45x = 746,419,733,665.43
  5. Step 5: Solve for x
    x = 746,419,733,665.43/1,180,127.45
  6. Step 6: Final answer
    x = 632,490.78

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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.