Finding the Fourth Proportional to 676,644.24, 1,014,648.49 and 392,415.56
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Solution
The fourth proportional to 676,644.24, 1,014,648.49 and 392,415.56 is: 588,438.99
Step by Step Solution
- Step 1: Write the proportion equation
676,644.24 : 1,014,648.49 = 392,415.56 : x - Step 2: Convert to fraction form
676,644.24/1,014,648.49 = 392,415.56/x - Step 3: Cross multiply
676,644.24x = 1,014,648.49 × 392,415.56 - Step 4: Simplify right side
676,644.24x = 398,163,855,406.50 - Step 5: Solve for x
x = 398,163,855,406.50/676,644.24 - Step 6: Final answer
x = 588,438.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.