Home / 855,172.72-1,283,201.70-620,452.72

Finding the Fourth Proportional to 855,172.72, 1,283,201.70 and 620,452.72

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Solution

The fourth proportional to 855,172.72, 1,283,201.70 and 620,452.72 is: 931,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,172.72 : 1,283,201.70 = 620,452.72 : x
  2. Step 2: Convert to fraction form
    855,172.72/1,283,201.70 = 620,452.72/x
  3. Step 3: Cross multiply
    855,172.72x = 1,283,201.70 × 620,452.72
  4. Step 4: Simplify right side
    855,172.72x = 796,165,985,073.62
  5. Step 5: Solve for x
    x = 796,165,985,073.62/855,172.72
  6. Step 6: Final answer
    x = 931,000.21

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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.