Finding the Fourth Proportional to 807,905.95, 1,114,960.09 and 445,328.99
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Solution
The fourth proportional to 807,905.95, 1,114,960.09 and 445,328.99 is: 614,581.50
Step by Step Solution
- Step 1: Write the proportion equation
807,905.95 : 1,114,960.09 = 445,328.99 : x - Step 2: Convert to fraction form
807,905.95/1,114,960.09 = 445,328.99/x - Step 3: Cross multiply
807,905.95x = 1,114,960.09 × 445,328.99 - Step 4: Simplify right side
807,905.95x = 496,524,049,097.98 - Step 5: Solve for x
x = 496,524,049,097.98/807,905.95 - Step 6: Final answer
x = 614,581.50
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1.5x scale
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.