Finding the Fourth Proportional to 761,799.60, 1,142,843.84 and 306,425.68
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Solution
The fourth proportional to 761,799.60, 1,142,843.84 and 306,425.68 is: 459,696.62
Step by Step Solution
- Step 1: Write the proportion equation
761,799.60 : 1,142,843.84 = 306,425.68 : x - Step 2: Convert to fraction form
761,799.60/1,142,843.84 = 306,425.68/x - Step 3: Cross multiply
761,799.60x = 1,142,843.84 × 306,425.68 - Step 4: Simplify right side
761,799.60x = 350,196,700,805.81 - Step 5: Solve for x
x = 350,196,700,805.81/761,799.60 - Step 6: Final answer
x = 459,696.62
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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.