Finding the Fourth Proportional to 1,993,778.88, 2,751,051.88 and 1,122,478.08
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Solution
The fourth proportional to 1,993,778.88, 2,751,051.88 and 1,122,478.08 is: 1,548,815.39
Step by Step Solution
- Step 1: Write the proportion equation
1,993,778.88 : 2,751,051.88 = 1,122,478.08 : x - Step 2: Convert to fraction form
1,993,778.88/2,751,051.88 = 1,122,478.08/x - Step 3: Cross multiply
1,993,778.88x = 2,751,051.88 × 1,122,478.08 - Step 4: Simplify right side
1,993,778.88x = 3,087,995,412,875.14 - Step 5: Solve for x
x = 3,087,995,412,875.14/1,993,778.88 - Step 6: Final answer
x = 1,548,815.39
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.