Home / 821,718.98-1,232,578.49-222,680.11

Finding the Fourth Proportional to 821,718.98, 1,232,578.49 and 222,680.11

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Solution

The fourth proportional to 821,718.98, 1,232,578.49 and 222,680.11 is: 334,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,718.98 : 1,232,578.49 = 222,680.11 : x
  2. Step 2: Convert to fraction form
    821,718.98/1,232,578.49 = 222,680.11/x
  3. Step 3: Cross multiply
    821,718.98x = 1,232,578.49 × 222,680.11
  4. Step 4: Simplify right side
    821,718.98x = 274,470,713,736.83
  5. Step 5: Solve for x
    x = 274,470,713,736.83/821,718.98
  6. Step 6: Final answer
    x = 334,020.17

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Double scale
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Similar ratio
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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.