Finding the Fourth Proportional to 864,864.06, 1,296,243.20 and 612,216.14
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Solution
The fourth proportional to 864,864.06, 1,296,243.20 and 612,216.14 is: 917,578.89
Step by Step Solution
- Step 1: Write the proportion equation
864,864.06 : 1,296,243.20 = 612,216.14 : x - Step 2: Convert to fraction form
864,864.06/1,296,243.20 = 612,216.14/x - Step 3: Cross multiply
864,864.06x = 1,296,243.20 × 612,216.14 - Step 4: Simplify right side
864,864.06x = 793,581,008,405.25 - Step 5: Solve for x
x = 793,581,008,405.25/864,864.06 - Step 6: Final answer
x = 917,578.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.