Home / 2,157,639.71-2,977,455.78-1,190,757.56

Finding the Fourth Proportional to 2,157,639.71, 2,977,455.78 and 1,190,757.56

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Solution

The fourth proportional to 2,157,639.71, 2,977,455.78 and 1,190,757.56 is: 1,643,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,639.71 : 2,977,455.78 = 1,190,757.56 : x
  2. Step 2: Convert to fraction form
    2,157,639.71/2,977,455.78 = 1,190,757.56/x
  3. Step 3: Cross multiply
    2,157,639.71x = 2,977,455.78 × 1,190,757.56
  4. Step 4: Simplify right side
    2,157,639.71x = 3,545,427,964,713.42
  5. Step 5: Solve for x
    x = 3,545,427,964,713.42/2,157,639.71
  6. Step 6: Final answer
    x = 1,643,197.41

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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.