Finding the Fourth Proportional to 1,547,121.72, 2,135,064.80 and 868,108.44
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Solution
The fourth proportional to 1,547,121.72, 2,135,064.80 and 868,108.44 is: 1,198,010.31
Step by Step Solution
- Step 1: Write the proportion equation
1,547,121.72 : 2,135,064.80 = 868,108.44 : x - Step 2: Convert to fraction form
1,547,121.72/2,135,064.80 = 868,108.44/x - Step 3: Cross multiply
1,547,121.72x = 2,135,064.80 × 868,108.44 - Step 4: Simplify right side
1,547,121.72x = 1,853,467,768,486.37 - Step 5: Solve for x
x = 1,853,467,768,486.37/1,547,121.72 - Step 6: Final answer
x = 1,198,010.31
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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.