Finding the Fourth Proportional to 790,690.20, 1,186,108.20 and 258,214.02
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Solution
The fourth proportional to 790,690.20, 1,186,108.20 and 258,214.02 is: 387,344.84
Step by Step Solution
- Step 1: Write the proportion equation
790,690.20 : 1,186,108.20 = 258,214.02 : x - Step 2: Convert to fraction form
790,690.20/1,186,108.20 = 258,214.02/x - Step 3: Cross multiply
790,690.20x = 1,186,108.20 × 258,214.02 - Step 4: Simplify right side
790,690.20x = 306,269,766,476.96 - Step 5: Solve for x
x = 306,269,766,476.96/790,690.20 - Step 6: Final answer
x = 387,344.84
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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.