Home / 809,457.85-1,213,975.20-240,685.77

Finding the Fourth Proportional to 809,457.85, 1,213,975.20 and 240,685.77

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Solution

The fourth proportional to 809,457.85, 1,213,975.20 and 240,685.77 is: 360,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,457.85 : 1,213,975.20 = 240,685.77 : x
  2. Step 2: Convert to fraction form
    809,457.85/1,213,975.20 = 240,685.77/x
  3. Step 3: Cross multiply
    809,457.85x = 1,213,975.20 × 240,685.77
  4. Step 4: Simplify right side
    809,457.85x = 292,186,555,772.90
  5. Step 5: Solve for x
    x = 292,186,555,772.90/809,457.85
  6. Step 6: Final answer
    x = 360,965.75

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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.