Finding the Fourth Proportional to 1,161,699.36, 1,603,318.32 and 916,121.14
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Solution
The fourth proportional to 1,161,699.36, 1,603,318.32 and 916,121.14 is: 1,264,383.76
Step by Step Solution
- Step 1: Write the proportion equation
1,161,699.36 : 1,603,318.32 = 916,121.14 : x - Step 2: Convert to fraction form
1,161,699.36/1,603,318.32 = 916,121.14/x - Step 3: Cross multiply
1,161,699.36x = 1,603,318.32 × 916,121.14 - Step 4: Simplify right side
1,161,699.36x = 1,468,833,807,101.29 - Step 5: Solve for x
x = 1,468,833,807,101.29/1,161,699.36 - Step 6: Final answer
x = 1,264,383.76
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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.