Finding the Fourth Proportional to 1,161,459.36, 1,599,106.32 and 991,009.44
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Solution
The fourth proportional to 1,161,459.36, 1,599,106.32 and 991,009.44 is: 1,364,429.54
Step by Step Solution
- Step 1: Write the proportion equation
1,161,459.36 : 1,599,106.32 = 991,009.44 : x - Step 2: Convert to fraction form
1,161,459.36/1,599,106.32 = 991,009.44/x - Step 3: Cross multiply
1,161,459.36x = 1,599,106.32 × 991,009.44 - Step 4: Simplify right side
1,161,459.36x = 1,584,729,458,683.66 - Step 5: Solve for x
x = 1,584,729,458,683.66/1,161,459.36 - Step 6: Final answer
x = 1,364,429.54
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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.