Finding the Fourth Proportional to 667,877.90, 921,723.99 and 413,311.10
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Solution
The fourth proportional to 667,877.90, 921,723.99 and 413,311.10 is: 570,401.80
Step by Step Solution
- Step 1: Write the proportion equation
667,877.90 : 921,723.99 = 413,311.10 : x - Step 2: Convert to fraction form
667,877.90/921,723.99 = 413,311.10/x - Step 3: Cross multiply
667,877.90x = 921,723.99 × 413,311.10 - Step 4: Simplify right side
667,877.90x = 380,958,756,203.29 - Step 5: Solve for x
x = 380,958,756,203.29/667,877.90 - Step 6: Final answer
x = 570,401.80
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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.