Finding the Fourth Proportional to 537,811.20, 806,716.80 and 513,316.80
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Solution
The fourth proportional to 537,811.20, 806,716.80 and 513,316.80 is: 769,975.20
Step by Step Solution
- Step 1: Write the proportion equation
537,811.20 : 806,716.80 = 513,316.80 : x - Step 2: Convert to fraction form
537,811.20/806,716.80 = 513,316.80/x - Step 3: Cross multiply
537,811.20x = 806,716.80 × 513,316.80 - Step 4: Simplify right side
537,811.20x = 414,101,286,282.24 - Step 5: Solve for x
x = 414,101,286,282.24/537,811.20 - Step 6: Final answer
x = 769,975.20
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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.