Finding the Fourth Proportional to 3,887,863.23, 5,831,878.91 and 1,192,128.76
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Solution
The fourth proportional to 3,887,863.23, 5,831,878.91 and 1,192,128.76 is: 1,788,218.92
Step by Step Solution
- Step 1: Write the proportion equation
3,887,863.23 : 5,831,878.91 = 1,192,128.76 : x - Step 2: Convert to fraction form
3,887,863.23/5,831,878.91 = 1,192,128.76/x - Step 3: Cross multiply
3,887,863.23x = 5,831,878.91 × 1,192,128.76 - Step 4: Simplify right side
3,887,863.23x = 6,952,350,574,777.66 - Step 5: Solve for x
x = 6,952,350,574,777.66/3,887,863.23 - Step 6: Final answer
x = 1,788,218.92
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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.