Finding the Fourth Proportional to 808,832.80, 1,214,247.60 and 509,312.80
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Solution
The fourth proportional to 808,832.80, 1,214,247.60 and 509,312.80 is: 764,597.88
Step by Step Solution
- Step 1: Write the proportion equation
808,832.80 : 1,214,247.60 = 509,312.80 : x - Step 2: Convert to fraction form
808,832.80/1,214,247.60 = 509,312.80/x - Step 3: Cross multiply
808,832.80x = 1,214,247.60 × 509,312.80 - Step 4: Simplify right side
808,832.80x = 618,431,845,049.28 - Step 5: Solve for x
x = 618,431,845,049.28/808,832.80 - Step 6: Final answer
x = 764,597.88
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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.