Finding the Fourth Proportional to 868,772.09, 1,198,194.62 and 611,500.70
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Solution
The fourth proportional to 868,772.09, 1,198,194.62 and 611,500.70 is: 843,370.61
Step by Step Solution
- Step 1: Write the proportion equation
868,772.09 : 1,198,194.62 = 611,500.70 : x - Step 2: Convert to fraction form
868,772.09/1,198,194.62 = 611,500.70/x - Step 3: Cross multiply
868,772.09x = 1,198,194.62 × 611,500.70 - Step 4: Simplify right side
868,772.09x = 732,696,848,866.23 - Step 5: Solve for x
x = 732,696,848,866.23/868,772.09 - Step 6: Final answer
x = 843,370.61
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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.