Finding the Fourth Proportional to 807,651.80, 1,211,477.70 and 492,723.80
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Solution
The fourth proportional to 807,651.80, 1,211,477.70 and 492,723.80 is: 739,085.70
Step by Step Solution
- Step 1: Write the proportion equation
807,651.80 : 1,211,477.70 = 492,723.80 : x - Step 2: Convert to fraction form
807,651.80/1,211,477.70 = 492,723.80/x - Step 3: Cross multiply
807,651.80x = 1,211,477.70 × 492,723.80 - Step 4: Simplify right side
807,651.80x = 596,923,895,959.26 - Step 5: Solve for x
x = 596,923,895,959.26/807,651.80 - Step 6: Final answer
x = 739,085.70
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1.5x scale
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.