Finding the Fourth Proportional to 1,378,943.03, 2,068,414.27 and 432,389.99
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Solution
The fourth proportional to 1,378,943.03, 2,068,414.27 and 432,389.99 is: 648,584.89
Step by Step Solution
- Step 1: Write the proportion equation
1,378,943.03 : 2,068,414.27 = 432,389.99 : x - Step 2: Convert to fraction form
1,378,943.03/2,068,414.27 = 432,389.99/x - Step 3: Cross multiply
1,378,943.03x = 2,068,414.27 × 432,389.99 - Step 4: Simplify right side
1,378,943.03x = 894,361,614,098.11 - Step 5: Solve for x
x = 894,361,614,098.11/1,378,943.03 - Step 6: Final answer
x = 648,584.89
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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.