Finding the Fourth Proportional to 1,243,042.91, 1,715,381.99 and 699,179.07
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Solution
The fourth proportional to 1,243,042.91, 1,715,381.99 and 699,179.07 is: 964,857.42
Step by Step Solution
- Step 1: Write the proportion equation
1,243,042.91 : 1,715,381.99 = 699,179.07 : x - Step 2: Convert to fraction form
1,243,042.91/1,715,381.99 = 699,179.07/x - Step 3: Cross multiply
1,243,042.91x = 1,715,381.99 × 699,179.07 - Step 4: Simplify right side
1,243,042.91x = 1,199,359,180,967.05 - Step 5: Solve for x
x = 1,199,359,180,967.05/1,243,042.91 - Step 6: Final answer
x = 964,857.42
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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.