Finding the Fourth Proportional to 1,092,112.80, 1,638,907.31 and 382,146.99
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Solution
The fourth proportional to 1,092,112.80, 1,638,907.31 and 382,146.99 is: 573,478.76
Step by Step Solution
- Step 1: Write the proportion equation
1,092,112.80 : 1,638,907.31 = 382,146.99 : x - Step 2: Convert to fraction form
1,092,112.80/1,638,907.31 = 382,146.99/x - Step 3: Cross multiply
1,092,112.80x = 1,638,907.31 × 382,146.99 - Step 4: Simplify right side
1,092,112.80x = 626,303,495,405.50 - Step 5: Solve for x
x = 626,303,495,405.50/1,092,112.80 - Step 6: Final answer
x = 573,478.76
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1.5x scale
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.