Finding the Fourth Proportional to 765,793.74, 1,149,078.12 and 316,836.79
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Solution
The fourth proportional to 765,793.74, 1,149,078.12 and 316,836.79 is: 475,415.52
Step by Step Solution
- Step 1: Write the proportion equation
765,793.74 : 1,149,078.12 = 316,836.79 : x - Step 2: Convert to fraction form
765,793.74/1,149,078.12 = 316,836.79/x - Step 3: Cross multiply
765,793.74x = 1,149,078.12 × 316,836.79 - Step 4: Simplify right side
765,793.74x = 364,070,223,000.04 - Step 5: Solve for x
x = 364,070,223,000.04/765,793.74 - Step 6: Final answer
x = 475,415.52
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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.