Home / 821,720.73-1,232,581.11-222,681.86

Finding the Fourth Proportional to 821,720.73, 1,232,581.11 and 222,681.86

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Solution

The fourth proportional to 821,720.73, 1,232,581.11 and 222,681.86 is: 334,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,720.73 : 1,232,581.11 = 222,681.86 : x
  2. Step 2: Convert to fraction form
    821,720.73/1,232,581.11 = 222,681.86/x
  3. Step 3: Cross multiply
    821,720.73x = 1,232,581.11 × 222,681.86
  4. Step 4: Simplify right side
    821,720.73x = 274,473,459,632.90
  5. Step 5: Solve for x
    x = 274,473,459,632.90/821,720.73
  6. Step 6: Final answer
    x = 334,022.80

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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.