Finding the Fourth Proportional to 1,985,513.88, 2,739,099.08 and 1,169,326.84
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Solution
The fourth proportional to 1,985,513.88, 2,739,099.08 and 1,169,326.84 is: 1,613,135.07
Step by Step Solution
- Step 1: Write the proportion equation
1,985,513.88 : 2,739,099.08 = 1,169,326.84 : x - Step 2: Convert to fraction form
1,985,513.88/2,739,099.08 = 1,169,326.84/x - Step 3: Cross multiply
1,985,513.88x = 2,739,099.08 × 1,169,326.84 - Step 4: Simplify right side
1,985,513.88x = 3,202,902,071,663.31 - Step 5: Solve for x
x = 3,202,902,071,663.31/1,985,513.88 - Step 6: Final answer
x = 1,613,135.07
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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.