Finding the Fourth Proportional to 401,207.19, 553,343.09 and 352,705.42
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Solution
The fourth proportional to 401,207.19, 553,343.09 and 352,705.42 is: 486,449.66
Step by Step Solution
- Step 1: Write the proportion equation
401,207.19 : 553,343.09 = 352,705.42 : x - Step 2: Convert to fraction form
401,207.19/553,343.09 = 352,705.42/x - Step 3: Cross multiply
401,207.19x = 553,343.09 × 352,705.42 - Step 4: Simplify right side
401,207.19x = 195,167,102,432.31 - Step 5: Solve for x
x = 195,167,102,432.31/401,207.19 - Step 6: Final answer
x = 486,449.66
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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.