Home / 808,626.80-1,212,940.20-209,583.20

Finding the Fourth Proportional to 808,626.80, 1,212,940.20 and 209,583.20

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Solution

The fourth proportional to 808,626.80, 1,212,940.20 and 209,583.20 is: 314,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,626.80 : 1,212,940.20 = 209,583.20 : x
  2. Step 2: Convert to fraction form
    808,626.80/1,212,940.20 = 209,583.20/x
  3. Step 3: Cross multiply
    808,626.80x = 1,212,940.20 × 209,583.20
  4. Step 4: Simplify right side
    808,626.80x = 254,211,888,524.64
  5. Step 5: Solve for x
    x = 254,211,888,524.64/808,626.80
  6. Step 6: Final answer
    x = 314,374.80

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1.5x scale

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.