Home / 1,247,096.82-1,720,865.19-920,583.54

Finding the Fourth Proportional to 1,247,096.82, 1,720,865.19 and 920,583.54

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Solution

The fourth proportional to 1,247,096.82, 1,720,865.19 and 920,583.54 is: 1,270,310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,096.82 : 1,720,865.19 = 920,583.54 : x
  2. Step 2: Convert to fraction form
    1,247,096.82/1,720,865.19 = 920,583.54/x
  3. Step 3: Cross multiply
    1,247,096.82x = 1,720,865.19 × 920,583.54
  4. Step 4: Simplify right side
    1,247,096.82x = 1,584,200,168,472.97
  5. Step 5: Solve for x
    x = 1,584,200,168,472.97/1,247,096.82
  6. Step 6: Final answer
    x = 1,270,310.49

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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.