Home / 821,588.76-1,231,365.78-465,523.29

Finding the Fourth Proportional to 821,588.76, 1,231,365.78 and 465,523.29

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Solution

The fourth proportional to 821,588.76, 1,231,365.78 and 465,523.29 is: 697,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,588.76 : 1,231,365.78 = 465,523.29 : x
  2. Step 2: Convert to fraction form
    821,588.76/1,231,365.78 = 465,523.29/x
  3. Step 3: Cross multiply
    821,588.76x = 1,231,365.78 × 465,523.29
  4. Step 4: Simplify right side
    821,588.76x = 573,229,449,099.02
  5. Step 5: Solve for x
    x = 573,229,449,099.02/821,588.76
  6. Step 6: Final answer
    x = 697,708.49

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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.