Finding the Fourth Proportional to 790,108.68, 1,089,320.58 and 503,524.20
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Solution
The fourth proportional to 790,108.68, 1,089,320.58 and 503,524.20 is: 694,207.38
Step by Step Solution
- Step 1: Write the proportion equation
790,108.68 : 1,089,320.58 = 503,524.20 : x - Step 2: Convert to fraction form
790,108.68/1,089,320.58 = 503,524.20/x - Step 3: Cross multiply
790,108.68x = 1,089,320.58 × 503,524.20 - Step 4: Simplify right side
790,108.68x = 548,499,273,588.04 - Step 5: Solve for x
x = 548,499,273,588.04/790,108.68 - Step 6: Final answer
x = 694,207.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.