Home / 1,293,084.90-1,783,966.41-783,601.38

Finding the Fourth Proportional to 1,293,084.90, 1,783,966.41 and 783,601.38

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Solution

The fourth proportional to 1,293,084.90, 1,783,966.41 and 783,601.38 is: 1,081,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,084.90 : 1,783,966.41 = 783,601.38 : x
  2. Step 2: Convert to fraction form
    1,293,084.90/1,783,966.41 = 783,601.38/x
  3. Step 3: Cross multiply
    1,293,084.90x = 1,783,966.41 × 783,601.38
  4. Step 4: Simplify right side
    1,293,084.90x = 1,397,918,540,749.65
  5. Step 5: Solve for x
    x = 1,397,918,540,749.65/1,293,084.90
  6. Step 6: Final answer
    x = 1,081,072.51

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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.