Home / 654,827.20-981,319.20-485,022.40

Finding the Fourth Proportional to 654,827.20, 981,319.20 and 485,022.40

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Solution

The fourth proportional to 654,827.20, 981,319.20 and 485,022.40 is: 726,850.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,827.20 : 981,319.20 = 485,022.40 : x
  2. Step 2: Convert to fraction form
    654,827.20/981,319.20 = 485,022.40/x
  3. Step 3: Cross multiply
    654,827.20x = 981,319.20 × 485,022.40
  4. Step 4: Simplify right side
    654,827.20x = 475,961,793,550.08
  5. Step 5: Solve for x
    x = 475,961,793,550.08/654,827.20
  6. Step 6: Final answer
    x = 726,850.98

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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.