Finding the Fourth Proportional to 1,547,390.10, 2,135,255.49 and 868,201.62
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Solution
The fourth proportional to 1,547,390.10, 2,135,255.49 and 868,201.62 is: 1,198,038.09
Step by Step Solution
- Step 1: Write the proportion equation
1,547,390.10 : 2,135,255.49 = 868,201.62 : x - Step 2: Convert to fraction form
1,547,390.10/2,135,255.49 = 868,201.62/x - Step 3: Cross multiply
1,547,390.10x = 2,135,255.49 × 868,201.62 - Step 4: Simplify right side
1,547,390.10x = 1,853,832,275,531.89 - Step 5: Solve for x
x = 1,853,832,275,531.89/1,547,390.10 - Step 6: Final answer
x = 1,198,038.09
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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.