Home / 2,640,313.25-3,961,322.80-1,221,300.17

Finding the Fourth Proportional to 2,640,313.25, 3,961,322.80 and 1,221,300.17

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Solution

The fourth proportional to 2,640,313.25, 3,961,322.80 and 1,221,300.17 is: 1,832,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,313.25 : 3,961,322.80 = 1,221,300.17 : x
  2. Step 2: Convert to fraction form
    2,640,313.25/3,961,322.80 = 1,221,300.17/x
  3. Step 3: Cross multiply
    2,640,313.25x = 3,961,322.80 × 1,221,300.17
  4. Step 4: Simplify right side
    2,640,313.25x = 4,837,964,186,205.01
  5. Step 5: Solve for x
    x = 4,837,964,186,205.01/2,640,313.25
  6. Step 6: Final answer
    x = 1,832,344.78

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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.