Finding the Fourth Proportional to 465,409.80, 698,114.70 and 347,311.80
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Solution
The fourth proportional to 465,409.80, 698,114.70 and 347,311.80 is: 520,967.70
Step by Step Solution
- Step 1: Write the proportion equation
465,409.80 : 698,114.70 = 347,311.80 : x - Step 2: Convert to fraction form
465,409.80/698,114.70 = 347,311.80/x - Step 3: Cross multiply
465,409.80x = 698,114.70 × 347,311.80 - Step 4: Simplify right side
465,409.80x = 242,463,473,063.46 - Step 5: Solve for x
x = 242,463,473,063.46/465,409.80 - Step 6: Final answer
x = 520,967.70
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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.