Finding the Fourth Proportional to 810,859.09, 1,118,977.98 and 448,292.02
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Solution
The fourth proportional to 810,859.09, 1,118,977.98 and 448,292.02 is: 618,638.81
Step by Step Solution
- Step 1: Write the proportion equation
810,859.09 : 1,118,977.98 = 448,292.02 : x - Step 2: Convert to fraction form
810,859.09/1,118,977.98 = 448,292.02/x - Step 3: Cross multiply
810,859.09x = 1,118,977.98 × 448,292.02 - Step 4: Simplify right side
810,859.09x = 501,628,898,989.72 - Step 5: Solve for x
x = 501,628,898,989.72/810,859.09 - Step 6: Final answer
x = 618,638.81
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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.