Finding the Fourth Proportional to 831,031.21, 1,246,546.74 and 199,945.03
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Solution
The fourth proportional to 831,031.21, 1,246,546.74 and 199,945.03 is: 299,917.53
Step by Step Solution
- Step 1: Write the proportion equation
831,031.21 : 1,246,546.74 = 199,945.03 : x - Step 2: Convert to fraction form
831,031.21/1,246,546.74 = 199,945.03/x - Step 3: Cross multiply
831,031.21x = 1,246,546.74 × 199,945.03 - Step 4: Simplify right side
831,031.21x = 249,240,825,325.70 - Step 5: Solve for x
x = 249,240,825,325.70/831,031.21 - Step 6: Final answer
x = 299,917.53
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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.