Finding the Fourth Proportional to 1,018,722.36, 1,528,389.09 and 411,198.06
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Solution
The fourth proportional to 1,018,722.36, 1,528,389.09 and 411,198.06 is: 616,920.42
Step by Step Solution
- Step 1: Write the proportion equation
1,018,722.36 : 1,528,389.09 = 411,198.06 : x - Step 2: Convert to fraction form
1,018,722.36/1,528,389.09 = 411,198.06/x - Step 3: Cross multiply
1,018,722.36x = 1,528,389.09 × 411,198.06 - Step 4: Simplify right side
1,018,722.36x = 628,470,628,733.17 - Step 5: Solve for x
x = 628,470,628,733.17/1,018,722.36 - Step 6: Final answer
x = 616,920.42
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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.