Home / 815,061.87-1,222,657.61-254,101.23

Finding the Fourth Proportional to 815,061.87, 1,222,657.61 and 254,101.23

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Solution

The fourth proportional to 815,061.87, 1,222,657.61 and 254,101.23 is: 381,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,061.87 : 1,222,657.61 = 254,101.23 : x
  2. Step 2: Convert to fraction form
    815,061.87/1,222,657.61 = 254,101.23/x
  3. Step 3: Cross multiply
    815,061.87x = 1,222,657.61 × 254,101.23
  4. Step 4: Simplify right side
    815,061.87x = 310,678,801,299.35
  5. Step 5: Solve for x
    x = 310,678,801,299.35/815,061.87
  6. Step 6: Final answer
    x = 381,172.05

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1.5x scale

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.