Home / 855,160.72-1,283,183.70-620,440.72

Finding the Fourth Proportional to 855,160.72, 1,283,183.70 and 620,440.72

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Solution

The fourth proportional to 855,160.72, 1,283,183.70 and 620,440.72 is: 930,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,160.72 : 1,283,183.70 = 620,440.72 : x
  2. Step 2: Convert to fraction form
    855,160.72/1,283,183.70 = 620,440.72/x
  3. Step 3: Cross multiply
    855,160.72x = 1,283,183.70 × 620,440.72
  4. Step 4: Simplify right side
    855,160.72x = 796,139,418,720.26
  5. Step 5: Solve for x
    x = 796,139,418,720.26/855,160.72
  6. Step 6: Final answer
    x = 930,982.21

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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.