Home / 775,291.72-1,163,388.78-325,980.04

Finding the Fourth Proportional to 775,291.72, 1,163,388.78 and 325,980.04

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Solution

The fourth proportional to 775,291.72, 1,163,388.78 and 325,980.04 is: 489,159.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,291.72 : 1,163,388.78 = 325,980.04 : x
  2. Step 2: Convert to fraction form
    775,291.72/1,163,388.78 = 325,980.04/x
  3. Step 3: Cross multiply
    775,291.72x = 1,163,388.78 × 325,980.04
  4. Step 4: Simplify right side
    775,291.72x = 379,241,521,039.95
  5. Step 5: Solve for x
    x = 379,241,521,039.95/775,291.72
  6. Step 6: Final answer
    x = 489,159.77

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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.