Home / 1,144,120.52-1,578,771.36-685,223.35

Finding the Fourth Proportional to 1,144,120.52, 1,578,771.36 and 685,223.35

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Solution

The fourth proportional to 1,144,120.52, 1,578,771.36 and 685,223.35 is: 945,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,120.52 : 1,578,771.36 = 685,223.35 : x
  2. Step 2: Convert to fraction form
    1,144,120.52/1,578,771.36 = 685,223.35/x
  3. Step 3: Cross multiply
    1,144,120.52x = 1,578,771.36 × 685,223.35
  4. Step 4: Simplify right side
    1,144,120.52x = 1,081,810,996,236.33
  5. Step 5: Solve for x
    x = 1,081,810,996,236.33/1,144,120.52
  6. Step 6: Final answer
    x = 945,539.37

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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.