Finding the Fourth Proportional to 868,091.68, 1,198,381.88 and 578,185.70
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Solution
The fourth proportional to 868,091.68, 1,198,381.88 and 578,185.70 is: 798,172.91
Step by Step Solution
- Step 1: Write the proportion equation
868,091.68 : 1,198,381.88 = 578,185.70 : x - Step 2: Convert to fraction form
868,091.68/1,198,381.88 = 578,185.70/x - Step 3: Cross multiply
868,091.68x = 1,198,381.88 × 578,185.70 - Step 4: Simplify right side
868,091.68x = 692,887,264,604.63 - Step 5: Solve for x
x = 692,887,264,604.63/868,091.68 - Step 6: Final answer
x = 798,172.91
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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.