Home / 658,971.86-987,750.25-279,572.38

Finding the Fourth Proportional to 658,971.86, 987,750.25 and 279,572.38

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Solution

The fourth proportional to 658,971.86, 987,750.25 and 279,572.38 is: 419,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,971.86 : 987,750.25 = 279,572.38 : x
  2. Step 2: Convert to fraction form
    658,971.86/987,750.25 = 279,572.38/x
  3. Step 3: Cross multiply
    658,971.86x = 987,750.25 × 279,572.38
  4. Step 4: Simplify right side
    658,971.86x = 276,147,685,069.79
  5. Step 5: Solve for x
    x = 276,147,685,069.79/658,971.86
  6. Step 6: Final answer
    x = 419,058.39

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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.