Home / 981,390.40-1,471,048.80-559,758.40

Finding the Fourth Proportional to 981,390.40, 1,471,048.80 and 559,758.40

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Solution

The fourth proportional to 981,390.40, 1,471,048.80 and 559,758.40 is: 839,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,390.40 : 1,471,048.80 = 559,758.40 : x
  2. Step 2: Convert to fraction form
    981,390.40/1,471,048.80 = 559,758.40/x
  3. Step 3: Cross multiply
    981,390.40x = 1,471,048.80 × 559,758.40
  4. Step 4: Simplify right side
    981,390.40x = 823,431,922,609.92
  5. Step 5: Solve for x
    x = 823,431,922,609.92/981,390.40
  6. Step 6: Final answer
    x = 839,046.24

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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.