Finding the Fourth Proportional to 1,378,078.34, 2,067,393.44 and 771,728.94
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Solution
The fourth proportional to 1,378,078.34, 2,067,393.44 and 771,728.94 is: 1,157,747.93
Step by Step Solution
- Step 1: Write the proportion equation
1,378,078.34 : 2,067,393.44 = 771,728.94 : x - Step 2: Convert to fraction form
1,378,078.34/2,067,393.44 = 771,728.94/x - Step 3: Cross multiply
1,378,078.34x = 2,067,393.44 × 771,728.94 - Step 4: Simplify right side
1,378,078.34x = 1,595,467,338,987.03 - Step 5: Solve for x
x = 1,595,467,338,987.03/1,378,078.34 - Step 6: Final answer
x = 1,157,747.93
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.