Finding the Fourth Proportional to 1,282,901.08, 1,769,233.86 and 1,101,556.12
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Solution
The fourth proportional to 1,282,901.08, 1,769,233.86 and 1,101,556.12 is: 1,519,143.15
Step by Step Solution
- Step 1: Write the proportion equation
1,282,901.08 : 1,769,233.86 = 1,101,556.12 : x - Step 2: Convert to fraction form
1,282,901.08/1,769,233.86 = 1,101,556.12/x - Step 3: Cross multiply
1,282,901.08x = 1,769,233.86 × 1,101,556.12 - Step 4: Simplify right side
1,282,901.08x = 1,948,910,386,194.22 - Step 5: Solve for x
x = 1,948,910,386,194.22/1,282,901.08 - Step 6: Final answer
x = 1,519,143.15
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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.