Home / 809,042.30-1,213,563.45-494,114.30

Finding the Fourth Proportional to 809,042.30, 1,213,563.45 and 494,114.30

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Solution

The fourth proportional to 809,042.30, 1,213,563.45 and 494,114.30 is: 741,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,042.30 : 1,213,563.45 = 494,114.30 : x
  2. Step 2: Convert to fraction form
    809,042.30/1,213,563.45 = 494,114.30/x
  3. Step 3: Cross multiply
    809,042.30x = 1,213,563.45 × 494,114.30
  4. Step 4: Simplify right side
    809,042.30x = 599,639,054,602.34
  5. Step 5: Solve for x
    x = 599,639,054,602.34/809,042.30
  6. Step 6: Final answer
    x = 741,171.45

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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.