Home / 1,229,890.21-1,697,290.55-713,605.12

Finding the Fourth Proportional to 1,229,890.21, 1,697,290.55 and 713,605.12

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Solution

The fourth proportional to 1,229,890.21, 1,697,290.55 and 713,605.12 is: 984,799.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,890.21 : 1,697,290.55 = 713,605.12 : x
  2. Step 2: Convert to fraction form
    1,229,890.21/1,697,290.55 = 713,605.12/x
  3. Step 3: Cross multiply
    1,229,890.21x = 1,697,290.55 × 713,605.12
  4. Step 4: Simplify right side
    1,229,890.21x = 1,211,195,223,039.59
  5. Step 5: Solve for x
    x = 1,211,195,223,039.59/1,229,890.21
  6. Step 6: Final answer
    x = 984,799.47

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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.