Home / 818,007.42-1,227,076.73-285,516.66

Finding the Fourth Proportional to 818,007.42, 1,227,076.73 and 285,516.66

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Solution

The fourth proportional to 818,007.42, 1,227,076.73 and 285,516.66 is: 428,297.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,007.42 : 1,227,076.73 = 285,516.66 : x
  2. Step 2: Convert to fraction form
    818,007.42/1,227,076.73 = 285,516.66/x
  3. Step 3: Cross multiply
    818,007.42x = 1,227,076.73 × 285,516.66
  4. Step 4: Simplify right side
    818,007.42x = 350,350,849,513.32
  5. Step 5: Solve for x
    x = 350,350,849,513.32/818,007.42
  6. Step 6: Final answer
    x = 428,297.89

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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.