Home / 1,225,089.18-1,690,553.62-681,213.30

Finding the Fourth Proportional to 1,225,089.18, 1,690,553.62 and 681,213.30

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Solution

The fourth proportional to 1,225,089.18, 1,690,553.62 and 681,213.30 is: 940,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,089.18 : 1,690,553.62 = 681,213.30 : x
  2. Step 2: Convert to fraction form
    1,225,089.18/1,690,553.62 = 681,213.30/x
  3. Step 3: Cross multiply
    1,225,089.18x = 1,690,553.62 × 681,213.30
  4. Step 4: Simplify right side
    1,225,089.18x = 1,151,627,604,819.09
  5. Step 5: Solve for x
    x = 1,151,627,604,819.09/1,225,089.18
  6. Step 6: Final answer
    x = 940,035.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.