Finding the Fourth Proportional to 447,605.44, 617,689.15 and 243,658.05
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Solution
The fourth proportional to 447,605.44, 617,689.15 and 243,658.05 is: 336,244.65
Step by Step Solution
- Step 1: Write the proportion equation
447,605.44 : 617,689.15 = 243,658.05 : x - Step 2: Convert to fraction form
447,605.44/617,689.15 = 243,658.05/x - Step 3: Cross multiply
447,605.44x = 617,689.15 × 243,658.05 - Step 4: Simplify right side
447,605.44x = 150,504,933,795.16 - Step 5: Solve for x
x = 150,504,933,795.16/447,605.44 - Step 6: Final answer
x = 336,244.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.