Home / 543,971.28-815,373.56-263,102.16

Finding the Fourth Proportional to 543,971.28, 815,373.56 and 263,102.16

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Solution

The fourth proportional to 543,971.28, 815,373.56 and 263,102.16 is: 394,371.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,971.28 : 815,373.56 = 263,102.16 : x
  2. Step 2: Convert to fraction form
    543,971.28/815,373.56 = 263,102.16/x
  3. Step 3: Cross multiply
    543,971.28x = 815,373.56 × 263,102.16
  4. Step 4: Simplify right side
    543,971.28x = 214,526,544,842.89
  5. Step 5: Solve for x
    x = 214,526,544,842.89/543,971.28
  6. Step 6: Final answer
    x = 394,371.09

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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.