Finding the Fourth Proportional to 1,678,362.90, 2,316,167.37 and 914,416.26
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Solution
The fourth proportional to 1,678,362.90, 2,316,167.37 and 914,416.26 is: 1,261,908.91
Step by Step Solution
- Step 1: Write the proportion equation
1,678,362.90 : 2,316,167.37 = 914,416.26 : x - Step 2: Convert to fraction form
1,678,362.90/2,316,167.37 = 914,416.26/x - Step 3: Cross multiply
1,678,362.90x = 2,316,167.37 × 914,416.26 - Step 4: Simplify right side
1,678,362.90x = 2,117,941,104,009.44 - Step 5: Solve for x
x = 2,117,941,104,009.44/1,678,362.90 - Step 6: Final answer
x = 1,261,908.91
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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.