Finding the Fourth Proportional to 397,316.10, 595,974.15 and 366,989.70
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Solution
The fourth proportional to 397,316.10, 595,974.15 and 366,989.70 is: 550,484.55
Step by Step Solution
- Step 1: Write the proportion equation
397,316.10 : 595,974.15 = 366,989.70 : x - Step 2: Convert to fraction form
397,316.10/595,974.15 = 366,989.70/x - Step 3: Cross multiply
397,316.10x = 595,974.15 × 366,989.70 - Step 4: Simplify right side
397,316.10x = 218,716,374,516.26 - Step 5: Solve for x
x = 218,716,374,516.26/397,316.10 - Step 6: Final answer
x = 550,484.55
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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.