Home / 818,019.54-1,227,094.92-285,528.78

Finding the Fourth Proportional to 818,019.54, 1,227,094.92 and 285,528.78

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Solution

The fourth proportional to 818,019.54, 1,227,094.92 and 285,528.78 is: 428,316.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,019.54 : 1,227,094.92 = 285,528.78 : x
  2. Step 2: Convert to fraction form
    818,019.54/1,227,094.92 = 285,528.78/x
  3. Step 3: Cross multiply
    818,019.54x = 1,227,094.92 × 285,528.78
  4. Step 4: Simplify right side
    818,019.54x = 350,370,915,451.80
  5. Step 5: Solve for x
    x = 350,370,915,451.80/818,019.54
  6. Step 6: Final answer
    x = 428,316.07

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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.