Finding the Fourth Proportional to 684,172.26, 944,152.76 and 378,261.99
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Solution
The fourth proportional to 684,172.26, 944,152.76 and 378,261.99 is: 521,998.80
Step by Step Solution
- Step 1: Write the proportion equation
684,172.26 : 944,152.76 = 378,261.99 : x - Step 2: Convert to fraction form
684,172.26/944,152.76 = 378,261.99/x - Step 3: Cross multiply
684,172.26x = 944,152.76 × 378,261.99 - Step 4: Simplify right side
684,172.26x = 357,137,099,970.28 - Step 5: Solve for x
x = 357,137,099,970.28/684,172.26 - Step 6: Final answer
x = 521,998.80
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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.