Home / 448,401.33-669,629.70-394,076.25

Finding the Fourth Proportional to 448,401.33, 669,629.70 and 394,076.25

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Solution

The fourth proportional to 448,401.33, 669,629.70 and 394,076.25 is: 588,502.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,401.33 : 669,629.70 = 394,076.25 : x
  2. Step 2: Convert to fraction form
    448,401.33/669,629.70 = 394,076.25/x
  3. Step 3: Cross multiply
    448,401.33x = 669,629.70 × 394,076.25
  4. Step 4: Simplify right side
    448,401.33x = 263,885,161,064.63
  5. Step 5: Solve for x
    x = 263,885,161,064.63/448,401.33
  6. Step 6: Final answer
    x = 588,502.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.