Finding the Fourth Proportional to 829,990.23, 1,145,374.34 and 467,414.79
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Solution
The fourth proportional to 829,990.23, 1,145,374.34 and 467,414.79 is: 645,025.55
Step by Step Solution
- Step 1: Write the proportion equation
829,990.23 : 1,145,374.34 = 467,414.79 : x - Step 2: Convert to fraction form
829,990.23/1,145,374.34 = 467,414.79/x - Step 3: Cross multiply
829,990.23x = 1,145,374.34 × 467,414.79 - Step 4: Simplify right side
829,990.23x = 535,364,904,265.42 - Step 5: Solve for x
x = 535,364,904,265.42/829,990.23 - Step 6: Final answer
x = 645,025.55
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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.