Finding the Fourth Proportional to 1,355,402.36, 1,868,922.15 and 864,715.97
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Solution
The fourth proportional to 1,355,402.36, 1,868,922.15 and 864,715.97 is: 1,192,329.95
Step by Step Solution
- Step 1: Write the proportion equation
1,355,402.36 : 1,868,922.15 = 864,715.97 : x - Step 2: Convert to fraction form
1,355,402.36/1,868,922.15 = 864,715.97/x - Step 3: Cross multiply
1,355,402.36x = 1,868,922.15 × 864,715.97 - Step 4: Simplify right side
1,355,402.36x = 1,616,086,829,791.74 - Step 5: Solve for x
x = 1,616,086,829,791.74/1,355,402.36 - Step 6: Final answer
x = 1,192,329.95
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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.