Finding the Fourth Proportional to 808,769.70, 1,214,138.70 and 409,204.80
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Solution
The fourth proportional to 808,769.70, 1,214,138.70 and 409,204.80 is: 614,305.14
Step by Step Solution
- Step 1: Write the proportion equation
808,769.70 : 1,214,138.70 = 409,204.80 : x - Step 2: Convert to fraction form
808,769.70/1,214,138.70 = 409,204.80/x - Step 3: Cross multiply
808,769.70x = 1,214,138.70 × 409,204.80 - Step 4: Simplify right side
808,769.70x = 496,831,383,905.76 - Step 5: Solve for x
x = 496,831,383,905.76/808,769.70 - Step 6: Final answer
x = 614,305.14
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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.