Home / 981,310.80-1,471,528.80-382,072.80

Finding the Fourth Proportional to 981,310.80, 1,471,528.80 and 382,072.80

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Solution

The fourth proportional to 981,310.80, 1,471,528.80 and 382,072.80 is: 572,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,310.80 : 1,471,528.80 = 382,072.80 : x
  2. Step 2: Convert to fraction form
    981,310.80/1,471,528.80 = 382,072.80/x
  3. Step 3: Cross multiply
    981,310.80x = 1,471,528.80 × 382,072.80
  4. Step 4: Simplify right side
    981,310.80x = 562,231,128,896.64
  5. Step 5: Solve for x
    x = 562,231,128,896.64/981,310.80
  6. Step 6: Final answer
    x = 572,938.90

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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.