Finding the Fourth Proportional to 918,125.70, 1,377,188.55 and 244,205.70
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Solution
The fourth proportional to 918,125.70, 1,377,188.55 and 244,205.70 is: 366,308.55
Step by Step Solution
- Step 1: Write the proportion equation
918,125.70 : 1,377,188.55 = 244,205.70 : x - Step 2: Convert to fraction form
918,125.70/1,377,188.55 = 244,205.70/x - Step 3: Cross multiply
918,125.70x = 1,377,188.55 × 244,205.70 - Step 4: Simplify right side
918,125.70x = 336,317,293,884.74 - Step 5: Solve for x
x = 336,317,293,884.74/918,125.70 - Step 6: Final answer
x = 366,308.55
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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.