Finding the Fourth Proportional to 743,559.48, 1,115,336.93 and 211,080.87
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Solution
The fourth proportional to 743,559.48, 1,115,336.93 and 211,080.87 is: 316,620.65
Step by Step Solution
- Step 1: Write the proportion equation
743,559.48 : 1,115,336.93 = 211,080.87 : x - Step 2: Convert to fraction form
743,559.48/1,115,336.93 = 211,080.87/x - Step 3: Cross multiply
743,559.48x = 1,115,336.93 × 211,080.87 - Step 4: Simplify right side
743,559.48x = 235,426,288,472.13 - Step 5: Solve for x
x = 235,426,288,472.13/743,559.48 - Step 6: Final answer
x = 316,620.65
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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.