Finding the Fourth Proportional to 1,515,815.58, 2,092,177.18 and 999,662.62
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Solution
The fourth proportional to 1,515,815.58, 2,092,177.18 and 999,662.62 is: 1,379,766.34
Step by Step Solution
- Step 1: Write the proportion equation
1,515,815.58 : 2,092,177.18 = 999,662.62 : x - Step 2: Convert to fraction form
1,515,815.58/2,092,177.18 = 999,662.62/x - Step 3: Cross multiply
1,515,815.58x = 2,092,177.18 × 999,662.62 - Step 4: Simplify right side
1,515,815.58x = 2,091,471,321,263.01 - Step 5: Solve for x
x = 2,091,471,321,263.01/1,515,815.58 - Step 6: Final answer
x = 1,379,766.34
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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.