Finding the Fourth Proportional to 808,220.20, 1,212,286.35 and 247,254.70
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Solution
The fourth proportional to 808,220.20, 1,212,286.35 and 247,254.70 is: 370,868.60
Step by Step Solution
- Step 1: Write the proportion equation
808,220.20 : 1,212,286.35 = 247,254.70 : x - Step 2: Convert to fraction form
808,220.20/1,212,286.35 = 247,254.70/x - Step 3: Cross multiply
808,220.20x = 1,212,286.35 × 247,254.70 - Step 4: Simplify right side
808,220.20x = 299,743,497,783.35 - Step 5: Solve for x
x = 299,743,497,783.35/808,220.20 - Step 6: Final answer
x = 370,868.60
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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.