Finding the Fourth Proportional to 1,643,161.49, 2,267,547.36 and 918,134.09
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Solution
The fourth proportional to 1,643,161.49, 2,267,547.36 and 918,134.09 is: 1,267,016.38
Step by Step Solution
- Step 1: Write the proportion equation
1,643,161.49 : 2,267,547.36 = 918,134.09 : x - Step 2: Convert to fraction form
1,643,161.49/2,267,547.36 = 918,134.09/x - Step 3: Cross multiply
1,643,161.49x = 2,267,547.36 × 918,134.09 - Step 4: Simplify right side
1,643,161.49x = 2,081,912,530,792.57 - Step 5: Solve for x
x = 2,081,912,530,792.57/1,643,161.49 - Step 6: Final answer
x = 1,267,016.38
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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.