Home / 1,021,921.23-1,410,183.79-613,780.55

Finding the Fourth Proportional to 1,021,921.23, 1,410,183.79 and 613,780.55

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Solution

The fourth proportional to 1,021,921.23, 1,410,183.79 and 613,780.55 is: 846,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,921.23 : 1,410,183.79 = 613,780.55 : x
  2. Step 2: Convert to fraction form
    1,021,921.23/1,410,183.79 = 613,780.55/x
  3. Step 3: Cross multiply
    1,021,921.23x = 1,410,183.79 × 613,780.55
  4. Step 4: Simplify right side
    1,021,921.23x = 865,543,373,641.91
  5. Step 5: Solve for x
    x = 865,543,373,641.91/1,021,921.23
  6. Step 6: Final answer
    x = 846,976.60

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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.