Home / 2,618,873.25-3,928,475.90-821,827.59

Finding the Fourth Proportional to 2,618,873.25, 3,928,475.90 and 821,827.59

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Solution

The fourth proportional to 2,618,873.25, 3,928,475.90 and 821,827.59 is: 1,232,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,873.25 : 3,928,475.90 = 821,827.59 : x
  2. Step 2: Convert to fraction form
    2,618,873.25/3,928,475.90 = 821,827.59/x
  3. Step 3: Cross multiply
    2,618,873.25x = 3,928,475.90 × 821,827.59
  4. Step 4: Simplify right side
    2,618,873.25x = 3,228,529,881,270.08
  5. Step 5: Solve for x
    x = 3,228,529,881,270.08/2,618,873.25
  6. Step 6: Final answer
    x = 1,232,793.49

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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.