Finding the Fourth Proportional to 963,207.45, 1,330,119.77 and 721,069.65
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Solution
The fourth proportional to 963,207.45, 1,330,119.77 and 721,069.65 is: 995,744.99
Step by Step Solution
- Step 1: Write the proportion equation
963,207.45 : 1,330,119.77 = 721,069.65 : x - Step 2: Convert to fraction form
963,207.45/1,330,119.77 = 721,069.65/x - Step 3: Cross multiply
963,207.45x = 1,330,119.77 × 721,069.65 - Step 4: Simplify right side
963,207.45x = 959,108,993,406.63 - Step 5: Solve for x
x = 959,108,993,406.63/963,207.45 - Step 6: Final answer
x = 995,744.99
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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.