Finding the Fourth Proportional to 1,511,464.90, 2,085,823.77 and 823,138.22
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Solution
The fourth proportional to 1,511,464.90, 2,085,823.77 and 823,138.22 is: 1,135,931.95
Step by Step Solution
- Step 1: Write the proportion equation
1,511,464.90 : 2,085,823.77 = 823,138.22 : x - Step 2: Convert to fraction form
1,511,464.90/2,085,823.77 = 823,138.22/x - Step 3: Cross multiply
1,511,464.90x = 2,085,823.77 × 823,138.22 - Step 4: Simplify right side
1,511,464.90x = 1,716,921,265,271.49 - Step 5: Solve for x
x = 1,716,921,265,271.49/1,511,464.90 - Step 6: Final answer
x = 1,135,931.95
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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.