Home / 493,986.78-741,040.77-139,001.15

Finding the Fourth Proportional to 493,986.78, 741,040.77 and 139,001.15

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Solution

The fourth proportional to 493,986.78, 741,040.77 and 139,001.15 is: 208,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,986.78 : 741,040.77 = 139,001.15 : x
  2. Step 2: Convert to fraction form
    493,986.78/741,040.77 = 139,001.15/x
  3. Step 3: Cross multiply
    493,986.78x = 741,040.77 × 139,001.15
  4. Step 4: Simplify right side
    493,986.78x = 103,005,515,521.68
  5. Step 5: Solve for x
    x = 103,005,515,521.68/493,986.78
  6. Step 6: Final answer
    x = 208,518.77

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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.