Finding the Fourth Proportional to 843,920.60, 1,266,490.74 and 331,661.96
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Solution
The fourth proportional to 843,920.60, 1,266,490.74 and 331,661.96 is: 497,732.61
Step by Step Solution
- Step 1: Write the proportion equation
843,920.60 : 1,266,490.74 = 331,661.96 : x - Step 2: Convert to fraction form
843,920.60/1,266,490.74 = 331,661.96/x - Step 3: Cross multiply
843,920.60x = 1,266,490.74 × 331,661.96 - Step 4: Simplify right side
843,920.60x = 420,046,801,150.25 - Step 5: Solve for x
x = 420,046,801,150.25/843,920.60 - Step 6: Final answer
x = 497,732.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.