Finding the Fourth Proportional to 644,912.24, 889,972.46 and 358,426.17
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Solution
The fourth proportional to 644,912.24, 889,972.46 and 358,426.17 is: 494,624.54
Step by Step Solution
- Step 1: Write the proportion equation
644,912.24 : 889,972.46 = 358,426.17 : x - Step 2: Convert to fraction form
644,912.24/889,972.46 = 358,426.17/x - Step 3: Cross multiply
644,912.24x = 889,972.46 × 358,426.17 - Step 4: Simplify right side
644,912.24x = 318,989,418,451.15 - Step 5: Solve for x
x = 318,989,418,451.15/644,912.24 - Step 6: Final answer
x = 494,624.54
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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.