Finding the Fourth Proportional to 413,927.40, 620,891.10 and 272,209.80
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Solution
The fourth proportional to 413,927.40, 620,891.10 and 272,209.80 is: 408,314.70
Step by Step Solution
- Step 1: Write the proportion equation
413,927.40 : 620,891.10 = 272,209.80 : x - Step 2: Convert to fraction form
413,927.40/620,891.10 = 272,209.80/x - Step 3: Cross multiply
413,927.40x = 620,891.10 × 272,209.80 - Step 4: Simplify right side
413,927.40x = 169,012,642,152.78 - Step 5: Solve for x
x = 169,012,642,152.78/413,927.40 - Step 6: Final answer
x = 408,314.70
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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.