Home / 1,121,225.46-1,546,805.73-685,661.85

Finding the Fourth Proportional to 1,121,225.46, 1,546,805.73 and 685,661.85

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Solution

The fourth proportional to 1,121,225.46, 1,546,805.73 and 685,661.85 is: 945,916.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,225.46 : 1,546,805.73 = 685,661.85 : x
  2. Step 2: Convert to fraction form
    1,121,225.46/1,546,805.73 = 685,661.85/x
  3. Step 3: Cross multiply
    1,121,225.46x = 1,546,805.73 × 685,661.85
  4. Step 4: Simplify right side
    1,121,225.46x = 1,060,585,678,422.40
  5. Step 5: Solve for x
    x = 1,060,585,678,422.40/1,121,225.46
  6. Step 6: Final answer
    x = 945,916.51

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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.