Finding the Fourth Proportional to 1,898,987.05, 2,620,601.93 and 1,027,821.60
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Solution
The fourth proportional to 1,898,987.05, 2,620,601.93 and 1,027,821.60 is: 1,418,393.69
Step by Step Solution
- Step 1: Write the proportion equation
1,898,987.05 : 2,620,601.93 = 1,027,821.60 : x - Step 2: Convert to fraction form
1,898,987.05/2,620,601.93 = 1,027,821.60/x - Step 3: Cross multiply
1,898,987.05x = 2,620,601.93 × 1,027,821.60 - Step 4: Simplify right side
1,898,987.05x = 2,693,511,255,552.68 - Step 5: Solve for x
x = 2,693,511,255,552.68/1,898,987.05 - Step 6: Final answer
x = 1,418,393.69
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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.