Finding the Fourth Proportional to 722,422.60, 996,932.21 and 395,732.99
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Solution
The fourth proportional to 722,422.60, 996,932.21 and 395,732.99 is: 546,105.52
Step by Step Solution
- Step 1: Write the proportion equation
722,422.60 : 996,932.21 = 395,732.99 : x - Step 2: Convert to fraction form
722,422.60/996,932.21 = 395,732.99/x - Step 3: Cross multiply
722,422.60x = 996,932.21 × 395,732.99 - Step 4: Simplify right side
722,422.60x = 394,518,964,804.27 - Step 5: Solve for x
x = 394,518,964,804.27/722,422.60 - Step 6: Final answer
x = 546,105.52
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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.