Finding the Fourth Proportional to 3,456,638.58, 5,185,207.05 and 1,326,722.70
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Solution
The fourth proportional to 3,456,638.58, 5,185,207.05 and 1,326,722.70 is: 1,990,179.69
Step by Step Solution
- Step 1: Write the proportion equation
3,456,638.58 : 5,185,207.05 = 1,326,722.70 : x - Step 2: Convert to fraction form
3,456,638.58/5,185,207.05 = 1,326,722.70/x - Step 3: Cross multiply
3,456,638.58x = 5,185,207.05 × 1,326,722.70 - Step 4: Simplify right side
3,456,638.58x = 6,879,331,897,435.03 - Step 5: Solve for x
x = 6,879,331,897,435.03/3,456,638.58 - Step 6: Final answer
x = 1,990,179.69
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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.