Finding the Fourth Proportional to 743,344.80, 1,115,059.44 and 210,823.68
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Solution
The fourth proportional to 743,344.80, 1,115,059.44 and 210,823.68 is: 316,247.50
Step by Step Solution
- Step 1: Write the proportion equation
743,344.80 : 1,115,059.44 = 210,823.68 : x - Step 2: Convert to fraction form
743,344.80/1,115,059.44 = 210,823.68/x - Step 3: Cross multiply
743,344.80x = 1,115,059.44 × 210,823.68 - Step 4: Simplify right side
743,344.80x = 235,080,934,559.54 - Step 5: Solve for x
x = 235,080,934,559.54/743,344.80 - Step 6: Final answer
x = 316,247.50
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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.