Finding the Fourth Proportional to 786,392.19, 1,085,094.62 and 442,207.60
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Solution
The fourth proportional to 786,392.19, 1,085,094.62 and 442,207.60 is: 610,175.29
Step by Step Solution
- Step 1: Write the proportion equation
786,392.19 : 1,085,094.62 = 442,207.60 : x - Step 2: Convert to fraction form
786,392.19/1,085,094.62 = 442,207.60/x - Step 3: Cross multiply
786,392.19x = 1,085,094.62 × 442,207.60 - Step 4: Simplify right side
786,392.19x = 479,837,080,046.60 - Step 5: Solve for x
x = 479,837,080,046.60/786,392.19 - Step 6: Final answer
x = 610,175.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.