Finding the Fourth Proportional to 687,170.08, 1,030,738.12 and 266,446.04
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Solution
The fourth proportional to 687,170.08, 1,030,738.12 and 266,446.04 is: 399,662.47
Step by Step Solution
- Step 1: Write the proportion equation
687,170.08 : 1,030,738.12 = 266,446.04 : x - Step 2: Convert to fraction form
687,170.08/1,030,738.12 = 266,446.04/x - Step 3: Cross multiply
687,170.08x = 1,030,738.12 × 266,446.04 - Step 4: Simplify right side
687,170.08x = 274,636,090,351.05 - Step 5: Solve for x
x = 274,636,090,351.05/687,170.08 - Step 6: Final answer
x = 399,662.47
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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.