Finding the Fourth Proportional to 722,107.53, 996,539.49 and 399,817.58
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Solution
The fourth proportional to 722,107.53, 996,539.49 and 399,817.58 is: 551,765.47
Step by Step Solution
- Step 1: Write the proportion equation
722,107.53 : 996,539.49 = 399,817.58 : x - Step 2: Convert to fraction form
722,107.53/996,539.49 = 399,817.58/x - Step 3: Cross multiply
722,107.53x = 996,539.49 × 399,817.58 - Step 4: Simplify right side
722,107.53x = 398,434,002,283.54 - Step 5: Solve for x
x = 398,434,002,283.54/722,107.53 - Step 6: Final answer
x = 551,765.47
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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.