Finding the Fourth Proportional to 831,841.97, 1,147,995.07 and 469,133.49
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Solution
The fourth proportional to 831,841.97, 1,147,995.07 and 469,133.49 is: 647,434.19
Step by Step Solution
- Step 1: Write the proportion equation
831,841.97 : 1,147,995.07 = 469,133.49 : x - Step 2: Convert to fraction form
831,841.97/1,147,995.07 = 469,133.49/x - Step 3: Cross multiply
831,841.97x = 1,147,995.07 × 469,133.49 - Step 4: Simplify right side
831,841.97x = 538,562,933,691.89 - Step 5: Solve for x
x = 538,562,933,691.89/831,841.97 - Step 6: Final answer
x = 647,434.19
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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.