Finding the Fourth Proportional to 1,511,519.52, 2,085,991.20 and 832,455.84
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Solution
The fourth proportional to 1,511,519.52, 2,085,991.20 and 832,455.84 is: 1,148,840.97
Step by Step Solution
- Step 1: Write the proportion equation
1,511,519.52 : 2,085,991.20 = 832,455.84 : x - Step 2: Convert to fraction form
1,511,519.52/2,085,991.20 = 832,455.84/x - Step 3: Cross multiply
1,511,519.52x = 2,085,991.20 × 832,455.84 - Step 4: Simplify right side
1,511,519.52x = 1,736,495,556,628.61 - Step 5: Solve for x
x = 1,736,495,556,628.61/1,511,519.52 - Step 6: Final answer
x = 1,148,840.97
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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.