Finding the Fourth Proportional to 478,846.20, 718,269.30 and 471,847.80
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Solution
The fourth proportional to 478,846.20, 718,269.30 and 471,847.80 is: 707,771.70
Step by Step Solution
- Step 1: Write the proportion equation
478,846.20 : 718,269.30 = 471,847.80 : x - Step 2: Convert to fraction form
478,846.20/718,269.30 = 471,847.80/x - Step 3: Cross multiply
478,846.20x = 718,269.30 × 471,847.80 - Step 4: Simplify right side
478,846.20x = 338,913,789,012.54 - Step 5: Solve for x
x = 338,913,789,012.54/478,846.20 - Step 6: Final answer
x = 707,771.70
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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.