Home / 815,996.70-1,126,100.80-448,467.16

Finding the Fourth Proportional to 815,996.70, 1,126,100.80 and 448,467.16

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Solution

The fourth proportional to 815,996.70, 1,126,100.80 and 448,467.16 is: 618,898.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,996.70 : 1,126,100.80 = 448,467.16 : x
  2. Step 2: Convert to fraction form
    815,996.70/1,126,100.80 = 448,467.16/x
  3. Step 3: Cross multiply
    815,996.70x = 1,126,100.80 × 448,467.16
  4. Step 4: Simplify right side
    815,996.70x = 505,019,227,649.73
  5. Step 5: Solve for x
    x = 505,019,227,649.73/815,996.70
  6. Step 6: Final answer
    x = 618,898.62

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1.5x scale

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.