Finding the Fourth Proportional to 1,413,192.40, 1,950,712.79 and 840,231.21
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Solution
The fourth proportional to 1,413,192.40, 1,950,712.79 and 840,231.21 is: 1,159,820.68
Step by Step Solution
- Step 1: Write the proportion equation
1,413,192.40 : 1,950,712.79 = 840,231.21 : x - Step 2: Convert to fraction form
1,413,192.40/1,950,712.79 = 840,231.21/x - Step 3: Cross multiply
1,413,192.40x = 1,950,712.79 × 840,231.21 - Step 4: Simplify right side
1,413,192.40x = 1,639,049,767,904.18 - Step 5: Solve for x
x = 1,639,049,767,904.18/1,413,192.40 - Step 6: Final answer
x = 1,159,820.68
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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.