Home / 981,810.72-1,354,906.86-552,087.09

Finding the Fourth Proportional to 981,810.72, 1,354,906.86 and 552,087.09

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Solution

The fourth proportional to 981,810.72, 1,354,906.86 and 552,087.09 is: 761,884.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,810.72 : 1,354,906.86 = 552,087.09 : x
  2. Step 2: Convert to fraction form
    981,810.72/1,354,906.86 = 552,087.09/x
  3. Step 3: Cross multiply
    981,810.72x = 1,354,906.86 × 552,087.09
  4. Step 4: Simplify right side
    981,810.72x = 748,026,585,558.44
  5. Step 5: Solve for x
    x = 748,026,585,558.44/981,810.72
  6. Step 6: Final answer
    x = 761,884.72

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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.