Finding the Fourth Proportional to 775,343.78, 1,069,817.61 and 452,991.62
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Solution
The fourth proportional to 775,343.78, 1,069,817.61 and 452,991.62 is: 625,036.82
Step by Step Solution
- Step 1: Write the proportion equation
775,343.78 : 1,069,817.61 = 452,991.62 : x - Step 2: Convert to fraction form
775,343.78/1,069,817.61 = 452,991.62/x - Step 3: Cross multiply
775,343.78x = 1,069,817.61 × 452,991.62 - Step 4: Simplify right side
775,343.78x = 484,618,412,258.43 - Step 5: Solve for x
x = 484,618,412,258.43/775,343.78 - Step 6: Final answer
x = 625,036.82
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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.