Home / 1,216,796.28-1,823,907.31-458,309.57

Finding the Fourth Proportional to 1,216,796.28, 1,823,907.31 and 458,309.57

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Solution

The fourth proportional to 1,216,796.28, 1,823,907.31 and 458,309.57 is: 686,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,796.28 : 1,823,907.31 = 458,309.57 : x
  2. Step 2: Convert to fraction form
    1,216,796.28/1,823,907.31 = 458,309.57/x
  3. Step 3: Cross multiply
    1,216,796.28x = 1,823,907.31 × 458,309.57
  4. Step 4: Simplify right side
    1,216,796.28x = 835,914,163,554.87
  5. Step 5: Solve for x
    x = 835,914,163,554.87/1,216,796.28
  6. Step 6: Final answer
    x = 686,979.56

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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.