Finding the Fourth Proportional to 1,419,626.20, 1,958,992.96 and 775,045.02
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Solution
The fourth proportional to 1,419,626.20, 1,958,992.96 and 775,045.02 is: 1,069,512.34
Step by Step Solution
- Step 1: Write the proportion equation
1,419,626.20 : 1,958,992.96 = 775,045.02 : x - Step 2: Convert to fraction form
1,419,626.20/1,958,992.96 = 775,045.02/x - Step 3: Cross multiply
1,419,626.20x = 1,958,992.96 × 775,045.02 - Step 4: Simplify right side
1,419,626.20x = 1,518,307,737,863.06 - Step 5: Solve for x
x = 1,518,307,737,863.06/1,419,626.20 - Step 6: Final answer
x = 1,069,512.34
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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.