Finding the Fourth Proportional to 862,806.84, 1,190,322.72 and 572,555.28
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Solution
The fourth proportional to 862,806.84, 1,190,322.72 and 572,555.28 is: 789,893.55
Step by Step Solution
- Step 1: Write the proportion equation
862,806.84 : 1,190,322.72 = 572,555.28 : x - Step 2: Convert to fraction form
862,806.84/1,190,322.72 = 572,555.28/x - Step 3: Cross multiply
862,806.84x = 1,190,322.72 × 572,555.28 - Step 4: Simplify right side
862,806.84x = 681,525,558,239.96 - Step 5: Solve for x
x = 681,525,558,239.96/862,806.84 - Step 6: Final answer
x = 789,893.55
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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.