Finding the Fourth Proportional to 721,894.07, 996,201.72 and 399,597.23
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Solution
The fourth proportional to 721,894.07, 996,201.72 and 399,597.23 is: 551,437.48
Step by Step Solution
- Step 1: Write the proportion equation
721,894.07 : 996,201.72 = 399,597.23 : x - Step 2: Convert to fraction form
721,894.07/996,201.72 = 399,597.23/x - Step 3: Cross multiply
721,894.07x = 996,201.72 × 399,597.23 - Step 4: Simplify right side
721,894.07x = 398,079,442,852.23 - Step 5: Solve for x
x = 398,079,442,852.23/721,894.07 - Step 6: Final answer
x = 551,437.48
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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.