Home / 1,309,729.96-1,965,349.50-551,512.36

Finding the Fourth Proportional to 1,309,729.96, 1,965,349.50 and 551,512.36

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Solution

The fourth proportional to 1,309,729.96, 1,965,349.50 and 551,512.36 is: 827,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,729.96 : 1,965,349.50 = 551,512.36 : x
  2. Step 2: Convert to fraction form
    1,309,729.96/1,965,349.50 = 551,512.36/x
  3. Step 3: Cross multiply
    1,309,729.96x = 1,965,349.50 × 551,512.36
  4. Step 4: Simplify right side
    1,309,729.96x = 1,083,914,540,969.82
  5. Step 5: Solve for x
    x = 1,083,914,540,969.82/1,309,729.96
  6. Step 6: Final answer
    x = 827,586.28

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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.