Finding the Fourth Proportional to 818,614.62, 1,228,088.01 and 257,518.62
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Solution
The fourth proportional to 818,614.62, 1,228,088.01 and 257,518.62 is: 386,330.18
Step by Step Solution
- Step 1: Write the proportion equation
818,614.62 : 1,228,088.01 = 257,518.62 : x - Step 2: Convert to fraction form
818,614.62/1,228,088.01 = 257,518.62/x - Step 3: Cross multiply
818,614.62x = 1,228,088.01 × 257,518.62 - Step 4: Simplify right side
818,614.62x = 316,255,529,573.75 - Step 5: Solve for x
x = 316,255,529,573.75/818,614.62 - Step 6: Final answer
x = 386,330.18
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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.