Home / 809,314.60-1,214,409.30-360,104.80

Finding the Fourth Proportional to 809,314.60, 1,214,409.30 and 360,104.80

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Solution

The fourth proportional to 809,314.60, 1,214,409.30 and 360,104.80 is: 540,351.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,314.60 : 1,214,409.30 = 360,104.80 : x
  2. Step 2: Convert to fraction form
    809,314.60/1,214,409.30 = 360,104.80/x
  3. Step 3: Cross multiply
    809,314.60x = 1,214,409.30 × 360,104.80
  4. Step 4: Simplify right side
    809,314.60x = 437,314,618,094.64
  5. Step 5: Solve for x
    x = 437,314,618,094.64/809,314.60
  6. Step 6: Final answer
    x = 540,351.82

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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.