Home / 1,225,208.20-1,836,612.48-685,727.96

Finding the Fourth Proportional to 1,225,208.20, 1,836,612.48 and 685,727.96

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Solution

The fourth proportional to 1,225,208.20, 1,836,612.48 and 685,727.96 is: 1,027,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,208.20 : 1,836,612.48 = 685,727.96 : x
  2. Step 2: Convert to fraction form
    1,225,208.20/1,836,612.48 = 685,727.96/x
  3. Step 3: Cross multiply
    1,225,208.20x = 1,836,612.48 × 685,727.96
  4. Step 4: Simplify right side
    1,225,208.20x = 1,259,416,529,220.94
  5. Step 5: Solve for x
    x = 1,259,416,529,220.94/1,225,208.20
  6. Step 6: Final answer
    x = 1,027,920.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.