Finding the Fourth Proportional to 512,843.60, 769,407.60 and 213,465.20
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Solution
The fourth proportional to 512,843.60, 769,407.60 and 213,465.20 is: 320,256.99
Step by Step Solution
- Step 1: Write the proportion equation
512,843.60 : 769,407.60 = 213,465.20 : x - Step 2: Convert to fraction form
512,843.60/769,407.60 = 213,465.20/x - Step 3: Cross multiply
512,843.60x = 769,407.60 × 213,465.20 - Step 4: Simplify right side
512,843.60x = 164,241,747,215.52 - Step 5: Solve for x
x = 164,241,747,215.52/512,843.60 - Step 6: Final answer
x = 320,256.99
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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.