Home / 390,021.95-584,034.17-269,912.60

Finding the Fourth Proportional to 390,021.95, 584,034.17 and 269,912.60

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Solution

The fourth proportional to 390,021.95, 584,034.17 and 269,912.60 is: 404,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,021.95 : 584,034.17 = 269,912.60 : x
  2. Step 2: Convert to fraction form
    390,021.95/584,034.17 = 269,912.60/x
  3. Step 3: Cross multiply
    390,021.95x = 584,034.17 × 269,912.60
  4. Step 4: Simplify right side
    390,021.95x = 157,638,179,233.94
  5. Step 5: Solve for x
    x = 157,638,179,233.94/390,021.95
  6. Step 6: Final answer
    x = 404,177.71

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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.