Home / 1,112,091.78-1,668,137.85-270,643.53

Finding the Fourth Proportional to 1,112,091.78, 1,668,137.85 and 270,643.53

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Solution

The fourth proportional to 1,112,091.78, 1,668,137.85 and 270,643.53 is: 405,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,091.78 : 1,668,137.85 = 270,643.53 : x
  2. Step 2: Convert to fraction form
    1,112,091.78/1,668,137.85 = 270,643.53/x
  3. Step 3: Cross multiply
    1,112,091.78x = 1,668,137.85 × 270,643.53
  4. Step 4: Simplify right side
    1,112,091.78x = 451,470,716,250.61
  5. Step 5: Solve for x
    x = 451,470,716,250.61/1,112,091.78
  6. Step 6: Final answer
    x = 405,965.34

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Double scale
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1.5x scale

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.