Finding the Fourth Proportional to 1,370,243.12, 1,890,777.74 and 789,550.88
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Solution
The fourth proportional to 1,370,243.12, 1,890,777.74 and 789,550.88 is: 1,089,489.31
Step by Step Solution
- Step 1: Write the proportion equation
1,370,243.12 : 1,890,777.74 = 789,550.88 : x - Step 2: Convert to fraction form
1,370,243.12/1,890,777.74 = 789,550.88/x - Step 3: Cross multiply
1,370,243.12x = 1,890,777.74 × 789,550.88 - Step 4: Simplify right side
1,370,243.12x = 1,492,865,228,501.41 - Step 5: Solve for x
x = 1,492,865,228,501.41/1,370,243.12 - Step 6: Final answer
x = 1,089,489.31
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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.