Finding the Fourth Proportional to 2,387,107.20, 3,580,661.96 and 789,670.28
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Solution
The fourth proportional to 2,387,107.20, 3,580,661.96 and 789,670.28 is: 1,184,505.81
Step by Step Solution
- Step 1: Write the proportion equation
2,387,107.20 : 3,580,661.96 = 789,670.28 : x - Step 2: Convert to fraction form
2,387,107.20/3,580,661.96 = 789,670.28/x - Step 3: Cross multiply
2,387,107.20x = 3,580,661.96 × 789,670.28 - Step 4: Simplify right side
2,387,107.20x = 2,827,542,351,109.98 - Step 5: Solve for x
x = 2,827,542,351,109.98/2,387,107.20 - Step 6: Final answer
x = 1,184,505.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.