Home / 809,328.60-1,214,138.70-336,061.80

Finding the Fourth Proportional to 809,328.60, 1,214,138.70 and 336,061.80

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Solution

The fourth proportional to 809,328.60, 1,214,138.70 and 336,061.80 is: 504,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,328.60 : 1,214,138.70 = 336,061.80 : x
  2. Step 2: Convert to fraction form
    809,328.60/1,214,138.70 = 336,061.80/x
  3. Step 3: Cross multiply
    809,328.60x = 1,214,138.70 × 336,061.80
  4. Step 4: Simplify right side
    809,328.60x = 408,025,636,971.66
  5. Step 5: Solve for x
    x = 408,025,636,971.66/809,328.60
  6. Step 6: Final answer
    x = 504,153.24

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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.