Finding the Fourth Proportional to 3,112,693.49, 4,668,689.47 and 838,384.31
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Solution
The fourth proportional to 3,112,693.49, 4,668,689.47 and 838,384.31 is: 1,257,481.99
Step by Step Solution
- Step 1: Write the proportion equation
3,112,693.49 : 4,668,689.47 = 838,384.31 : x - Step 2: Convert to fraction form
3,112,693.49/4,668,689.47 = 838,384.31/x - Step 3: Cross multiply
3,112,693.49x = 4,668,689.47 × 838,384.31 - Step 4: Simplify right side
3,112,693.49x = 3,914,155,999,910.22 - Step 5: Solve for x
x = 3,914,155,999,910.22/3,112,693.49 - Step 6: Final answer
x = 1,257,481.99
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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.