Finding the Fourth Proportional to 691,067.79, 953,750.97 and 385,172.10
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Solution
The fourth proportional to 691,067.79, 953,750.97 and 385,172.10 is: 531,580.65
Step by Step Solution
- Step 1: Write the proportion equation
691,067.79 : 953,750.97 = 385,172.10 : x - Step 2: Convert to fraction form
691,067.79/953,750.97 = 385,172.10/x - Step 3: Cross multiply
691,067.79x = 953,750.97 × 385,172.10 - Step 4: Simplify right side
691,067.79x = 367,358,263,991.94 - Step 5: Solve for x
x = 367,358,263,991.94/691,067.79 - Step 6: Final answer
x = 531,580.65
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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.