Finding the Fourth Proportional to 769,926.87, 1,062,564.79 and 447,616.53
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Solution
The fourth proportional to 769,926.87, 1,062,564.79 and 447,616.53 is: 617,749.02
Step by Step Solution
- Step 1: Write the proportion equation
769,926.87 : 1,062,564.79 = 447,616.53 : x - Step 2: Convert to fraction form
769,926.87/1,062,564.79 = 447,616.53/x - Step 3: Cross multiply
769,926.87x = 1,062,564.79 × 447,616.53 - Step 4: Simplify right side
769,926.87x = 475,621,567,975.43 - Step 5: Solve for x
x = 475,621,567,975.43/769,926.87 - Step 6: Final answer
x = 617,749.02
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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.