Finding the Fourth Proportional to 470,643.80, 705,965.70 and 204,531.80
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Solution
The fourth proportional to 470,643.80, 705,965.70 and 204,531.80 is: 306,797.70
Step by Step Solution
- Step 1: Write the proportion equation
470,643.80 : 705,965.70 = 204,531.80 : x - Step 2: Convert to fraction form
470,643.80/705,965.70 = 204,531.80/x - Step 3: Cross multiply
470,643.80x = 705,965.70 × 204,531.80 - Step 4: Simplify right side
470,643.80x = 144,392,435,359.26 - Step 5: Solve for x
x = 144,392,435,359.26/470,643.80 - Step 6: Final answer
x = 306,797.70
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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.