Home / 981,764.22-1,472,664.56-307,830.45

Finding the Fourth Proportional to 981,764.22, 1,472,664.56 and 307,830.45

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Solution

The fourth proportional to 981,764.22, 1,472,664.56 and 307,830.45 is: 461,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,764.22 : 1,472,664.56 = 307,830.45 : x
  2. Step 2: Convert to fraction form
    981,764.22/1,472,664.56 = 307,830.45/x
  3. Step 3: Cross multiply
    981,764.22x = 1,472,664.56 × 307,830.45
  4. Step 4: Simplify right side
    981,764.22x = 453,330,992,664.70
  5. Step 5: Solve for x
    x = 453,330,992,664.70/981,764.22
  6. Step 6: Final answer
    x = 461,751.39

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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.