Finding the Fourth Proportional to 868,431.24, 1,198,421.11 and 486,456.84
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Solution
The fourth proportional to 868,431.24, 1,198,421.11 and 486,456.84 is: 671,302.60
Step by Step Solution
- Step 1: Write the proportion equation
868,431.24 : 1,198,421.11 = 486,456.84 : x - Step 2: Convert to fraction form
868,431.24/1,198,421.11 = 486,456.84/x - Step 3: Cross multiply
868,431.24x = 1,198,421.11 × 486,456.84 - Step 4: Simplify right side
868,431.24x = 582,980,146,159.89 - Step 5: Solve for x
x = 582,980,146,159.89/868,431.24 - Step 6: Final answer
x = 671,302.60
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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.