Home / 821,676.93-1,133,809.95-482,021.25

Finding the Fourth Proportional to 821,676.93, 1,133,809.95 and 482,021.25

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Solution

The fourth proportional to 821,676.93, 1,133,809.95 and 482,021.25 is: 665,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,676.93 : 1,133,809.95 = 482,021.25 : x
  2. Step 2: Convert to fraction form
    821,676.93/1,133,809.95 = 482,021.25/x
  3. Step 3: Cross multiply
    821,676.93x = 1,133,809.95 × 482,021.25
  4. Step 4: Simplify right side
    821,676.93x = 546,520,489,361.44
  5. Step 5: Solve for x
    x = 546,520,489,361.44/821,676.93
  6. Step 6: Final answer
    x = 665,128.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.