Finding the Fourth Proportional to 671,144.99, 1,006,225.38 and 315,965.25
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Solution
The fourth proportional to 671,144.99, 1,006,225.38 and 315,965.25 is: 473,716.20
Step by Step Solution
- Step 1: Write the proportion equation
671,144.99 : 1,006,225.38 = 315,965.25 : x - Step 2: Convert to fraction form
671,144.99/1,006,225.38 = 315,965.25/x - Step 3: Cross multiply
671,144.99x = 1,006,225.38 × 315,965.25 - Step 4: Simplify right side
671,144.99x = 317,932,253,748.05 - Step 5: Solve for x
x = 317,932,253,748.05/671,144.99 - Step 6: Final answer
x = 473,716.20
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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.