Home / 981,347.80-1,472,021.70-928,859.80

Finding the Fourth Proportional to 981,347.80, 1,472,021.70 and 928,859.80

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Solution

The fourth proportional to 981,347.80, 1,472,021.70 and 928,859.80 is: 1,393,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,347.80 : 1,472,021.70 = 928,859.80 : x
  2. Step 2: Convert to fraction form
    981,347.80/1,472,021.70 = 928,859.80/x
  3. Step 3: Cross multiply
    981,347.80x = 1,472,021.70 × 928,859.80
  4. Step 4: Simplify right side
    981,347.80x = 1,367,301,781,857.66
  5. Step 5: Solve for x
    x = 1,367,301,781,857.66/981,347.80
  6. Step 6: Final answer
    x = 1,393,289.70

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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.