Home / 1,221,297.92-1,685,350.88-737,778.54

Finding the Fourth Proportional to 1,221,297.92, 1,685,350.88 and 737,778.54

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Solution

The fourth proportional to 1,221,297.92, 1,685,350.88 and 737,778.54 is: 1,018,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,297.92 : 1,685,350.88 = 737,778.54 : x
  2. Step 2: Convert to fraction form
    1,221,297.92/1,685,350.88 = 737,778.54/x
  3. Step 3: Cross multiply
    1,221,297.92x = 1,685,350.88 × 737,778.54
  4. Step 4: Simplify right side
    1,221,297.92x = 1,243,415,711,634.12
  5. Step 5: Solve for x
    x = 1,243,415,711,634.12/1,221,297.92
  6. Step 6: Final answer
    x = 1,018,110.07

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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.