Finding the Fourth Proportional to 889,806.36, 1,334,839.68 and 258,638.16
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Solution
The fourth proportional to 889,806.36, 1,334,839.68 and 258,638.16 is: 387,995.07
Step by Step Solution
- Step 1: Write the proportion equation
889,806.36 : 1,334,839.68 = 258,638.16 : x - Step 2: Convert to fraction form
889,806.36/1,334,839.68 = 258,638.16/x - Step 3: Cross multiply
889,806.36x = 1,334,839.68 × 258,638.16 - Step 4: Simplify right side
889,806.36x = 345,240,478,730.19 - Step 5: Solve for x
x = 345,240,478,730.19/889,806.36 - Step 6: Final answer
x = 387,995.07
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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.