Home / 815,571.90-1,125,496.89-475,974.54

Finding the Fourth Proportional to 815,571.90, 1,125,496.89 and 475,974.54

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Solution

The fourth proportional to 815,571.90, 1,125,496.89 and 475,974.54 is: 656,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,571.90 : 1,125,496.89 = 475,974.54 : x
  2. Step 2: Convert to fraction form
    815,571.90/1,125,496.89 = 475,974.54/x
  3. Step 3: Cross multiply
    815,571.90x = 1,125,496.89 × 475,974.54
  4. Step 4: Simplify right side
    815,571.90x = 535,707,864,489.18
  5. Step 5: Solve for x
    x = 535,707,864,489.18/815,571.90
  6. Step 6: Final answer
    x = 656,849.34

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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.