Finding the Fourth Proportional to 1,547,129.75, 2,135,075.84 and 868,116.47
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Solution
The fourth proportional to 1,547,129.75, 2,135,075.84 and 868,116.47 is: 1,198,021.37
Step by Step Solution
- Step 1: Write the proportion equation
1,547,129.75 : 2,135,075.84 = 868,116.47 : x - Step 2: Convert to fraction form
1,547,129.75/2,135,075.84 = 868,116.47/x - Step 3: Cross multiply
1,547,129.75x = 2,135,075.84 × 868,116.47 - Step 4: Simplify right side
1,547,129.75x = 1,853,494,501,403.08 - Step 5: Solve for x
x = 1,853,494,501,403.08/1,547,129.75 - Step 6: Final answer
x = 1,198,021.37
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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.