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Finding the Fourth Proportional to 981,820.50, 1,472,896.82 and 502,256.51

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Solution

The fourth proportional to 981,820.50, 1,472,896.82 and 502,256.51 is: 753,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,820.50 : 1,472,896.82 = 502,256.51 : x
  2. Step 2: Convert to fraction form
    981,820.50/1,472,896.82 = 502,256.51/x
  3. Step 3: Cross multiply
    981,820.50x = 1,472,896.82 × 502,256.51
  4. Step 4: Simplify right side
    981,820.50x = 739,772,016,403.30
  5. Step 5: Solve for x
    x = 739,772,016,403.30/981,820.50
  6. Step 6: Final answer
    x = 753,469.72

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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.