Finding the Fourth Proportional to 1,389,616.10, 2,084,539.35 and 442,960.10
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Solution
The fourth proportional to 1,389,616.10, 2,084,539.35 and 442,960.10 is: 664,476.87
Step by Step Solution
- Step 1: Write the proportion equation
1,389,616.10 : 2,084,539.35 = 442,960.10 : x - Step 2: Convert to fraction form
1,389,616.10/2,084,539.35 = 442,960.10/x - Step 3: Cross multiply
1,389,616.10x = 2,084,539.35 × 442,960.10 - Step 4: Simplify right side
1,389,616.10x = 923,367,758,929.94 - Step 5: Solve for x
x = 923,367,758,929.94/1,389,616.10 - Step 6: Final answer
x = 664,476.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.