Finding the Fourth Proportional to 2,125,420.36, 2,932,969.43 and 1,207,522.11
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Solution
The fourth proportional to 2,125,420.36, 2,932,969.43 and 1,207,522.11 is: 1,666,317.65
Step by Step Solution
- Step 1: Write the proportion equation
2,125,420.36 : 2,932,969.43 = 1,207,522.11 : x - Step 2: Convert to fraction form
2,125,420.36/2,932,969.43 = 1,207,522.11/x - Step 3: Cross multiply
2,125,420.36x = 2,932,969.43 × 1,207,522.11 - Step 4: Simplify right side
2,125,420.36x = 3,541,625,448,696.54 - Step 5: Solve for x
x = 3,541,625,448,696.54/2,125,420.36 - Step 6: Final answer
x = 1,666,317.65
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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.