Finding the Fourth Proportional to 428,699.08, 591,602.34 and 237,740.68
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Solution
The fourth proportional to 428,699.08, 591,602.34 and 237,740.68 is: 328,080.81
Step by Step Solution
- Step 1: Write the proportion equation
428,699.08 : 591,602.34 = 237,740.68 : x - Step 2: Convert to fraction form
428,699.08/591,602.34 = 237,740.68/x - Step 3: Cross multiply
428,699.08x = 591,602.34 × 237,740.68 - Step 4: Simplify right side
428,699.08x = 140,647,942,601.19 - Step 5: Solve for x
x = 140,647,942,601.19/428,699.08 - Step 6: Final answer
x = 328,080.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.