Home / 818,007.79-1,227,077.30-285,517.03

Finding the Fourth Proportional to 818,007.79, 1,227,077.30 and 285,517.03

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Solution

The fourth proportional to 818,007.79, 1,227,077.30 and 285,517.03 is: 428,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,007.79 : 1,227,077.30 = 285,517.03 : x
  2. Step 2: Convert to fraction form
    818,007.79/1,227,077.30 = 285,517.03/x
  3. Step 3: Cross multiply
    818,007.79x = 1,227,077.30 × 285,517.03
  4. Step 4: Simplify right side
    818,007.79x = 350,351,466,276.42
  5. Step 5: Solve for x
    x = 350,351,466,276.42/818,007.79
  6. Step 6: Final answer
    x = 428,298.45

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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.