Finding the Fourth Proportional to 775,323.55, 1,162,985.39 and 242,886.09
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Solution
The fourth proportional to 775,323.55, 1,162,985.39 and 242,886.09 is: 364,329.16
Step by Step Solution
- Step 1: Write the proportion equation
775,323.55 : 1,162,985.39 = 242,886.09 : x - Step 2: Convert to fraction form
775,323.55/1,162,985.39 = 242,886.09/x - Step 3: Cross multiply
775,323.55x = 1,162,985.39 × 242,886.09 - Step 4: Simplify right side
775,323.55x = 282,472,979,528.05 - Step 5: Solve for x
x = 282,472,979,528.05/775,323.55 - Step 6: Final answer
x = 364,329.16
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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.