Finding the Fourth Proportional to 775,164.96, 1,069,631.46 and 448,534.08
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Solution
The fourth proportional to 775,164.96, 1,069,631.46 and 448,534.08 is: 618,921.37
Step by Step Solution
- Step 1: Write the proportion equation
775,164.96 : 1,069,631.46 = 448,534.08 : x - Step 2: Convert to fraction form
775,164.96/1,069,631.46 = 448,534.08/x - Step 3: Cross multiply
775,164.96x = 1,069,631.46 × 448,534.08 - Step 4: Simplify right side
775,164.96x = 479,766,162,850.16 - Step 5: Solve for x
x = 479,766,162,850.16/775,164.96 - Step 6: Final answer
x = 618,921.37
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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.