Finding the Fourth Proportional to 748,389.97, 1,122,583.74 and 215,913.79
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Solution
The fourth proportional to 748,389.97, 1,122,583.74 and 215,913.79 is: 323,870.33
Step by Step Solution
- Step 1: Write the proportion equation
748,389.97 : 1,122,583.74 = 215,913.79 : x - Step 2: Convert to fraction form
748,389.97/1,122,583.74 = 215,913.79/x - Step 3: Cross multiply
748,389.97x = 1,122,583.74 × 215,913.79 - Step 4: Simplify right side
748,389.97x = 242,381,309,895.78 - Step 5: Solve for x
x = 242,381,309,895.78/748,389.97 - Step 6: Final answer
x = 323,870.33
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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.