Finding the Fourth Proportional to 406,712.09, 609,662.12 and 140,302.68
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Solution
The fourth proportional to 406,712.09, 609,662.12 and 140,302.68 is: 210,313.96
Step by Step Solution
- Step 1: Write the proportion equation
406,712.09 : 609,662.12 = 140,302.68 : x - Step 2: Convert to fraction form
406,712.09/609,662.12 = 140,302.68/x - Step 3: Cross multiply
406,712.09x = 609,662.12 × 140,302.68 - Step 4: Simplify right side
406,712.09x = 85,537,228,628.97 - Step 5: Solve for x
x = 85,537,228,628.97/406,712.09 - Step 6: Final answer
x = 210,313.96
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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.