Finding the Fourth Proportional to 808,220.10, 1,212,330.15 and 276,341.70
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Solution
The fourth proportional to 808,220.10, 1,212,330.15 and 276,341.70 is: 414,512.55
Step by Step Solution
- Step 1: Write the proportion equation
808,220.10 : 1,212,330.15 = 276,341.70 : x - Step 2: Convert to fraction form
808,220.10/1,212,330.15 = 276,341.70/x - Step 3: Cross multiply
808,220.10x = 1,212,330.15 × 276,341.70 - Step 4: Simplify right side
808,220.10x = 335,017,374,612.26 - Step 5: Solve for x
x = 335,017,374,612.26/808,220.10 - Step 6: Final answer
x = 414,512.55
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Similar ratio
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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.