Finding the Fourth Proportional to 431,497.26, 645,511.41 and 372,961.26
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Solution
The fourth proportional to 431,497.26, 645,511.41 and 372,961.26 is: 557,942.71
Step by Step Solution
- Step 1: Write the proportion equation
431,497.26 : 645,511.41 = 372,961.26 : x - Step 2: Convert to fraction form
431,497.26/645,511.41 = 372,961.26/x - Step 3: Cross multiply
431,497.26x = 645,511.41 × 372,961.26 - Step 4: Simplify right side
431,497.26x = 240,750,748,817.98 - Step 5: Solve for x
x = 240,750,748,817.98/431,497.26 - Step 6: Final answer
x = 557,942.71
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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.