Finding the Fourth Proportional to 629,716.44, 869,008.94 and 357,784.70
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Solution
The fourth proportional to 629,716.44, 869,008.94 and 357,784.70 is: 493,743.02
Step by Step Solution
- Step 1: Write the proportion equation
629,716.44 : 869,008.94 = 357,784.70 : x - Step 2: Convert to fraction form
629,716.44/869,008.94 = 357,784.70/x - Step 3: Cross multiply
629,716.44x = 869,008.94 × 357,784.70 - Step 4: Simplify right side
629,716.44x = 310,918,096,761.25 - Step 5: Solve for x
x = 310,918,096,761.25/629,716.44 - Step 6: Final answer
x = 493,743.02
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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.