Finding the Fourth Proportional to 811,808.80, 1,218,058.80 and 512,519.20
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Solution
The fourth proportional to 811,808.80, 1,218,058.80 and 512,519.20 is: 768,996.99
Step by Step Solution
- Step 1: Write the proportion equation
811,808.80 : 1,218,058.80 = 512,519.20 : x - Step 2: Convert to fraction form
811,808.80/1,218,058.80 = 512,519.20/x - Step 3: Cross multiply
811,808.80x = 1,218,058.80 × 512,519.20 - Step 4: Simplify right side
811,808.80x = 624,278,521,728.96 - Step 5: Solve for x
x = 624,278,521,728.96/811,808.80 - Step 6: Final answer
x = 768,996.99
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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.