Home / 1,079,081.28-1,489,728.78-649,467

Finding the Fourth Proportional to 1,079,081.28, 1,489,728.78 and 649,467

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Solution

The fourth proportional to 1,079,081.28, 1,489,728.78 and 649,467 is: 896,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,081.28 : 1,489,728.78 = 649,467 : x
  2. Step 2: Convert to fraction form
    1,079,081.28/1,489,728.78 = 649,467/x
  3. Step 3: Cross multiply
    1,079,081.28x = 1,489,728.78 × 649,467
  4. Step 4: Simplify right side
    1,079,081.28x = 967,529,681,560.26
  5. Step 5: Solve for x
    x = 967,529,681,560.26/1,079,081.28
  6. Step 6: Final answer
    x = 896,623.54

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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.