Finding the Fourth Proportional to 1,188,224.99, 1,639,750.85 and 644,360.61
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Solution
The fourth proportional to 1,188,224.99, 1,639,750.85 and 644,360.61 is: 889,217.84
Step by Step Solution
- Step 1: Write the proportion equation
1,188,224.99 : 1,639,750.85 = 644,360.61 : x - Step 2: Convert to fraction form
1,188,224.99/1,639,750.85 = 644,360.61/x - Step 3: Cross multiply
1,188,224.99x = 1,639,750.85 × 644,360.61 - Step 4: Simplify right side
1,188,224.99x = 1,056,590,857,954.02 - Step 5: Solve for x
x = 1,056,590,857,954.02/1,188,224.99 - Step 6: Final answer
x = 889,217.84
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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.