Finding the Fourth Proportional to 674,674.20, 1,012,124.70 and 201,407.40
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Solution
The fourth proportional to 674,674.20, 1,012,124.70 and 201,407.40 is: 302,144.95
Step by Step Solution
- Step 1: Write the proportion equation
674,674.20 : 1,012,124.70 = 201,407.40 : x - Step 2: Convert to fraction form
674,674.20/1,012,124.70 = 201,407.40/x - Step 3: Cross multiply
674,674.20x = 1,012,124.70 × 201,407.40 - Step 4: Simplify right side
674,674.20x = 203,849,404,302.78 - Step 5: Solve for x
x = 203,849,404,302.78/674,674.20 - Step 6: Final answer
x = 302,144.95
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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.