Finding the Fourth Proportional to 788,691.30, 1,183,328.55 and 256,229.70
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Solution
The fourth proportional to 788,691.30, 1,183,328.55 and 256,229.70 is: 384,439.28
Step by Step Solution
- Step 1: Write the proportion equation
788,691.30 : 1,183,328.55 = 256,229.70 : x - Step 2: Convert to fraction form
788,691.30/1,183,328.55 = 256,229.70/x - Step 3: Cross multiply
788,691.30x = 1,183,328.55 × 256,229.70 - Step 4: Simplify right side
788,691.30x = 303,203,919,367.94 - Step 5: Solve for x
x = 303,203,919,367.94/788,691.30 - Step 6: Final answer
x = 384,439.28
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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.