Home / 1,783,149.12-2,460,789.12-978,333.12

Finding the Fourth Proportional to 1,783,149.12, 2,460,789.12 and 978,333.12

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Solution

The fourth proportional to 1,783,149.12, 2,460,789.12 and 978,333.12 is: 1,350,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783,149.12 : 2,460,789.12 = 978,333.12 : x
  2. Step 2: Convert to fraction form
    1,783,149.12/2,460,789.12 = 978,333.12/x
  3. Step 3: Cross multiply
    1,783,149.12x = 2,460,789.12 × 978,333.12
  4. Step 4: Simplify right side
    1,783,149.12x = 2,407,471,497,431.65
  5. Step 5: Solve for x
    x = 2,407,471,497,431.65/1,783,149.12
  6. Step 6: Final answer
    x = 1,350,123.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.