Finding the Fourth Proportional to 891,116.49, 1,229,805.81 and 509,135.07
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Solution
The fourth proportional to 891,116.49, 1,229,805.81 and 509,135.07 is: 702,643.56
Step by Step Solution
- Step 1: Write the proportion equation
891,116.49 : 1,229,805.81 = 509,135.07 : x - Step 2: Convert to fraction form
891,116.49/1,229,805.81 = 509,135.07/x - Step 3: Cross multiply
891,116.49x = 1,229,805.81 × 509,135.07 - Step 4: Simplify right side
891,116.49x = 626,137,267,160.76 - Step 5: Solve for x
x = 626,137,267,160.76/891,116.49 - Step 6: Final answer
x = 702,643.56
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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.