Finding the Fourth Proportional to 664,513.80, 996,770.70 and 243,953.70
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Solution
The fourth proportional to 664,513.80, 996,770.70 and 243,953.70 is: 365,930.55
Step by Step Solution
- Step 1: Write the proportion equation
664,513.80 : 996,770.70 = 243,953.70 : x - Step 2: Convert to fraction form
664,513.80/996,770.70 = 243,953.70/x - Step 3: Cross multiply
664,513.80x = 996,770.70 × 243,953.70 - Step 4: Simplify right side
664,513.80x = 243,165,900,316.59 - Step 5: Solve for x
x = 243,165,900,316.59/664,513.80 - Step 6: Final answer
x = 365,930.55
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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.