Finding the Fourth Proportional to 644,495.76, 966,737.46 and 391,845.99
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Solution
The fourth proportional to 644,495.76, 966,737.46 and 391,845.99 is: 587,765.23
Step by Step Solution
- Step 1: Write the proportion equation
644,495.76 : 966,737.46 = 391,845.99 : x - Step 2: Convert to fraction form
644,495.76/966,737.46 = 391,845.99/x - Step 3: Cross multiply
644,495.76x = 966,737.46 × 391,845.99 - Step 4: Simplify right side
644,495.76x = 378,812,197,083.79 - Step 5: Solve for x
x = 378,812,197,083.79/644,495.76 - Step 6: Final answer
x = 587,765.23
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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.