Finding the Fourth Proportional to 1,231,354.68, 1,699,845.39 and 715,007.99
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Solution
The fourth proportional to 1,231,354.68, 1,699,845.39 and 715,007.99 is: 987,045.45
Step by Step Solution
- Step 1: Write the proportion equation
1,231,354.68 : 1,699,845.39 = 715,007.99 : x - Step 2: Convert to fraction form
1,231,354.68/1,699,845.39 = 715,007.99/x - Step 3: Cross multiply
1,231,354.68x = 1,699,845.39 × 715,007.99 - Step 4: Simplify right side
1,231,354.68x = 1,215,403,035,614.67 - Step 5: Solve for x
x = 1,215,403,035,614.67/1,231,354.68 - Step 6: Final answer
x = 987,045.45
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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.