Finding the Fourth Proportional to 409,728.63, 614,592.99 and 129,267.75
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Solution
The fourth proportional to 409,728.63, 614,592.99 and 129,267.75 is: 193,901.64
Step by Step Solution
- Step 1: Write the proportion equation
409,728.63 : 614,592.99 = 129,267.75 : x - Step 2: Convert to fraction form
409,728.63/614,592.99 = 129,267.75/x - Step 3: Cross multiply
409,728.63x = 614,592.99 × 129,267.75 - Step 4: Simplify right side
409,728.63x = 79,447,052,983.07 - Step 5: Solve for x
x = 79,447,052,983.07/409,728.63 - Step 6: Final answer
x = 193,901.64
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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.