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Finding the Fourth Proportional to 981,770, 1,472,673.20 and 307,836.24

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Solution

The fourth proportional to 981,770, 1,472,673.20 and 307,836.24 is: 461,760.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,770 : 1,472,673.20 = 307,836.24 : x
  2. Step 2: Convert to fraction form
    981,770/1,472,673.20 = 307,836.24/x
  3. Step 3: Cross multiply
    981,770x = 1,472,673.20 × 307,836.24
  4. Step 4: Simplify right side
    981,770x = 453,342,180,636.77
  5. Step 5: Solve for x
    x = 453,342,180,636.77/981,770
  6. Step 6: Final answer
    x = 461,760.07

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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.