Home / 814,943.67-1,223,694.99-690,219.06

Finding the Fourth Proportional to 814,943.67, 1,223,694.99 and 690,219.06

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Solution

The fourth proportional to 814,943.67, 1,223,694.99 and 690,219.06 is: 1,036,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,943.67 : 1,223,694.99 = 690,219.06 : x
  2. Step 2: Convert to fraction form
    814,943.67/1,223,694.99 = 690,219.06/x
  3. Step 3: Cross multiply
    814,943.67x = 1,223,694.99 × 690,219.06
  4. Step 4: Simplify right side
    814,943.67x = 844,617,605,724.51
  5. Step 5: Solve for x
    x = 844,617,605,724.51/814,943.67
  6. Step 6: Final answer
    x = 1,036,412.25

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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.