Finding the Fourth Proportional to 722,198.79, 996,622.11 and 399,901.95
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Solution
The fourth proportional to 722,198.79, 996,622.11 and 399,901.95 is: 551,857.92
Step by Step Solution
- Step 1: Write the proportion equation
722,198.79 : 996,622.11 = 399,901.95 : x - Step 2: Convert to fraction form
722,198.79/996,622.11 = 399,901.95/x - Step 3: Cross multiply
722,198.79x = 996,622.11 × 399,901.95 - Step 4: Simplify right side
722,198.79x = 398,551,125,202.12 - Step 5: Solve for x
x = 398,551,125,202.12/722,198.79 - Step 6: Final answer
x = 551,857.92
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1.5x scale
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.