Home / 1,145,796.42-1,581,243.94-783,979.14

Finding the Fourth Proportional to 1,145,796.42, 1,581,243.94 and 783,979.14

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Solution

The fourth proportional to 1,145,796.42, 1,581,243.94 and 783,979.14 is: 1,081,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,796.42 : 1,581,243.94 = 783,979.14 : x
  2. Step 2: Convert to fraction form
    1,145,796.42/1,581,243.94 = 783,979.14/x
  3. Step 3: Cross multiply
    1,145,796.42x = 1,581,243.94 × 783,979.14
  4. Step 4: Simplify right side
    1,145,796.42x = 1,239,662,264,211.41
  5. Step 5: Solve for x
    x = 1,239,662,264,211.41/1,145,796.42
  6. Step 6: Final answer
    x = 1,081,921.92

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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.