Home / 981,449.76-1,472,172.84-307,582.68

Finding the Fourth Proportional to 981,449.76, 1,472,172.84 and 307,582.68

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Solution

The fourth proportional to 981,449.76, 1,472,172.84 and 307,582.68 is: 461,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,449.76 : 1,472,172.84 = 307,582.68 : x
  2. Step 2: Convert to fraction form
    981,449.76/1,472,172.84 = 307,582.68/x
  3. Step 3: Cross multiply
    981,449.76x = 1,472,172.84 × 307,582.68
  4. Step 4: Simplify right side
    981,449.76x = 452,814,867,550.41
  5. Step 5: Solve for x
    x = 452,814,867,550.41/981,449.76
  6. Step 6: Final answer
    x = 461,373.46

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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.