Home / 2,158,428.11-2,978,592.99-1,191,533.54

Finding the Fourth Proportional to 2,158,428.11, 2,978,592.99 and 1,191,533.54

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Solution

The fourth proportional to 2,158,428.11, 2,978,592.99 and 1,191,533.54 is: 1,644,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,428.11 : 2,978,592.99 = 1,191,533.54 : x
  2. Step 2: Convert to fraction form
    2,158,428.11/2,978,592.99 = 1,191,533.54/x
  3. Step 3: Cross multiply
    2,158,428.11x = 2,978,592.99 × 1,191,533.54
  4. Step 4: Simplify right side
    2,158,428.11x = 3,549,093,449,593.89
  5. Step 5: Solve for x
    x = 3,549,093,449,593.89/2,158,428.11
  6. Step 6: Final answer
    x = 1,644,295.42

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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.