Home / 1,928,885.11-2,887,651.96-1,287,598.28

Finding the Fourth Proportional to 1,928,885.11, 2,887,651.96 and 1,287,598.28

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Solution

The fourth proportional to 1,928,885.11, 2,887,651.96 and 1,287,598.28 is: 1,927,608.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,885.11 : 2,887,651.96 = 1,287,598.28 : x
  2. Step 2: Convert to fraction form
    1,928,885.11/2,887,651.96 = 1,287,598.28/x
  3. Step 3: Cross multiply
    1,928,885.11x = 2,887,651.96 × 1,287,598.28
  4. Step 4: Simplify right side
    1,928,885.11x = 3,718,135,679,277.37
  5. Step 5: Solve for x
    x = 3,718,135,679,277.37/1,928,885.11
  6. Step 6: Final answer
    x = 1,927,608.68

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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.