Finding the Fourth Proportional to 541,409.20, 812,113.80 and 505,979.80
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Solution
The fourth proportional to 541,409.20, 812,113.80 and 505,979.80 is: 758,969.70
Step by Step Solution
- Step 1: Write the proportion equation
541,409.20 : 812,113.80 = 505,979.80 : x - Step 2: Convert to fraction form
541,409.20/812,113.80 = 505,979.80/x - Step 3: Cross multiply
541,409.20x = 812,113.80 × 505,979.80 - Step 4: Simplify right side
541,409.20x = 410,913,178,101.24 - Step 5: Solve for x
x = 410,913,178,101.24/541,409.20 - Step 6: Final answer
x = 758,969.70
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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.