Home / 2,618,877.78-3,928,482.69-821,832.18

Finding the Fourth Proportional to 2,618,877.78, 3,928,482.69 and 821,832.18

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Solution

The fourth proportional to 2,618,877.78, 3,928,482.69 and 821,832.18 is: 1,232,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,877.78 : 3,928,482.69 = 821,832.18 : x
  2. Step 2: Convert to fraction form
    2,618,877.78/3,928,482.69 = 821,832.18/x
  3. Step 3: Cross multiply
    2,618,877.78x = 3,928,482.69 × 821,832.18
  4. Step 4: Simplify right side
    2,618,877.78x = 3,228,553,493,214.96
  5. Step 5: Solve for x
    x = 3,228,553,493,214.96/2,618,877.78
  6. Step 6: Final answer
    x = 1,232,800.37

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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.