Home / 809,930.20-1,214,895.30-360,650.20

Finding the Fourth Proportional to 809,930.20, 1,214,895.30 and 360,650.20

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Solution

The fourth proportional to 809,930.20, 1,214,895.30 and 360,650.20 is: 540,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,930.20 : 1,214,895.30 = 360,650.20 : x
  2. Step 2: Convert to fraction form
    809,930.20/1,214,895.30 = 360,650.20/x
  3. Step 3: Cross multiply
    809,930.20x = 1,214,895.30 × 360,650.20
  4. Step 4: Simplify right side
    809,930.20x = 438,152,232,924.06
  5. Step 5: Solve for x
    x = 438,152,232,924.06/809,930.20
  6. Step 6: Final answer
    x = 540,975.30

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Double scale
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Similar ratio
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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.