Finding the Fourth Proportional to 405,420.21, 606,623.58 and 254,957.04
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Solution
The fourth proportional to 405,420.21, 606,623.58 and 254,957.04 is: 381,488.02
Step by Step Solution
- Step 1: Write the proportion equation
405,420.21 : 606,623.58 = 254,957.04 : x - Step 2: Convert to fraction form
405,420.21/606,623.58 = 254,957.04/x - Step 3: Cross multiply
405,420.21x = 606,623.58 × 254,957.04 - Step 4: Simplify right side
405,420.21x = 154,662,952,351.00 - Step 5: Solve for x
x = 154,662,952,351.00/405,420.21 - Step 6: Final answer
x = 381,488.02
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1.5x scale
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.