Finding the Fourth Proportional to 811,423.80, 1,119,492.87 and 467,252.31
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Solution
The fourth proportional to 811,423.80, 1,119,492.87 and 467,252.31 is: 644,651.57
Step by Step Solution
- Step 1: Write the proportion equation
811,423.80 : 1,119,492.87 = 467,252.31 : x - Step 2: Convert to fraction form
811,423.80/1,119,492.87 = 467,252.31/x - Step 3: Cross multiply
811,423.80x = 1,119,492.87 × 467,252.31 - Step 4: Simplify right side
811,423.80x = 523,085,629,536.03 - Step 5: Solve for x
x = 523,085,629,536.03/811,423.80 - Step 6: Final answer
x = 644,651.57
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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.