Finding the Fourth Proportional to 465,947.80, 698,921.70 and 412,803.70
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Solution
The fourth proportional to 465,947.80, 698,921.70 and 412,803.70 is: 619,205.55
Step by Step Solution
- Step 1: Write the proportion equation
465,947.80 : 698,921.70 = 412,803.70 : x - Step 2: Convert to fraction form
465,947.80/698,921.70 = 412,803.70/x - Step 3: Cross multiply
465,947.80x = 698,921.70 × 412,803.70 - Step 4: Simplify right side
465,947.80x = 288,517,463,770.29 - Step 5: Solve for x
x = 288,517,463,770.29/465,947.80 - Step 6: Final answer
x = 619,205.55
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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.