Finding the Fourth Proportional to 885,771.70, 1,328,657.55 and 324,733.30
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Solution
The fourth proportional to 885,771.70, 1,328,657.55 and 324,733.30 is: 487,099.95
Step by Step Solution
- Step 1: Write the proportion equation
885,771.70 : 1,328,657.55 = 324,733.30 : x - Step 2: Convert to fraction form
885,771.70/1,328,657.55 = 324,733.30/x - Step 3: Cross multiply
885,771.70x = 1,328,657.55 × 324,733.30 - Step 4: Simplify right side
885,771.70x = 431,459,350,781.42 - Step 5: Solve for x
x = 431,459,350,781.42/885,771.70 - Step 6: Final answer
x = 487,099.95
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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.