Finding the Fourth Proportional to 722,192.84, 996,613.94 and 399,896.01
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Solution
The fourth proportional to 722,192.84, 996,613.94 and 399,896.01 is: 551,849.75
Step by Step Solution
- Step 1: Write the proportion equation
722,192.84 : 996,613.94 = 399,896.01 : x - Step 2: Convert to fraction form
722,192.84/996,613.94 = 399,896.01/x - Step 3: Cross multiply
722,192.84x = 996,613.94 × 399,896.01 - Step 4: Simplify right side
722,192.84x = 398,541,938,116.38 - Step 5: Solve for x
x = 398,541,938,116.38/722,192.84 - Step 6: Final answer
x = 551,849.75
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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.