Home / 981,814.80-1,354,912.56-552,091.20

Finding the Fourth Proportional to 981,814.80, 1,354,912.56 and 552,091.20

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Solution

The fourth proportional to 981,814.80, 1,354,912.56 and 552,091.20 is: 761,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,814.80 : 1,354,912.56 = 552,091.20 : x
  2. Step 2: Convert to fraction form
    981,814.80/1,354,912.56 = 552,091.20/x
  3. Step 3: Cross multiply
    981,814.80x = 1,354,912.56 × 552,091.20
  4. Step 4: Simplify right side
    981,814.80x = 748,035,301,145.47
  5. Step 5: Solve for x
    x = 748,035,301,145.47/981,814.80
  6. Step 6: Final answer
    x = 761,890.43

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1.5x scale

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.