Home / 1,420,481.54-1,959,640.34-869,223.50

Finding the Fourth Proportional to 1,420,481.54, 1,959,640.34 and 869,223.50

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Solution

The fourth proportional to 1,420,481.54, 1,959,640.34 and 869,223.50 is: 1,199,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,481.54 : 1,959,640.34 = 869,223.50 : x
  2. Step 2: Convert to fraction form
    1,420,481.54/1,959,640.34 = 869,223.50/x
  3. Step 3: Cross multiply
    1,420,481.54x = 1,959,640.34 × 869,223.50
  4. Step 4: Simplify right side
    1,420,481.54x = 1,703,365,439,975.09
  5. Step 5: Solve for x
    x = 1,703,365,439,975.09/1,420,481.54
  6. Step 6: Final answer
    x = 1,199,146.48

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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.