Finding the Fourth Proportional to 720,175.19, 993,852.18 and 397,892.70
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Solution
The fourth proportional to 720,175.19, 993,852.18 and 397,892.70 is: 549,097.69
Step by Step Solution
- Step 1: Write the proportion equation
720,175.19 : 993,852.18 = 397,892.70 : x - Step 2: Convert to fraction form
720,175.19/993,852.18 = 397,892.70/x - Step 3: Cross multiply
720,175.19x = 993,852.18 × 397,892.70 - Step 4: Simplify right side
720,175.19x = 395,446,527,301.09 - Step 5: Solve for x
x = 395,446,527,301.09/720,175.19 - Step 6: Final answer
x = 549,097.69
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1.5x scale
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.