Home / 800,778.84-1,105,096.46-490,676.04

Finding the Fourth Proportional to 800,778.84, 1,105,096.46 and 490,676.04

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Solution

The fourth proportional to 800,778.84, 1,105,096.46 and 490,676.04 is: 677,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,778.84 : 1,105,096.46 = 490,676.04 : x
  2. Step 2: Convert to fraction form
    800,778.84/1,105,096.46 = 490,676.04/x
  3. Step 3: Cross multiply
    800,778.84x = 1,105,096.46 × 490,676.04
  4. Step 4: Simplify right side
    800,778.84x = 542,244,354,810.82
  5. Step 5: Solve for x
    x = 542,244,354,810.82/800,778.84
  6. Step 6: Final answer
    x = 677,146.21

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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.