Home / 821,721.17-1,232,581.77-222,682.32

Finding the Fourth Proportional to 821,721.17, 1,232,581.77 and 222,682.32

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Solution

The fourth proportional to 821,721.17, 1,232,581.77 and 222,682.32 is: 334,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,721.17 : 1,232,581.77 = 222,682.32 : x
  2. Step 2: Convert to fraction form
    821,721.17/1,232,581.77 = 222,682.32/x
  3. Step 3: Cross multiply
    821,721.17x = 1,232,581.77 × 222,682.32
  4. Step 4: Simplify right side
    821,721.17x = 274,474,168,133.31
  5. Step 5: Solve for x
    x = 274,474,168,133.31/821,721.17
  6. Step 6: Final answer
    x = 334,023.49

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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.