Finding the Fourth Proportional to 1,107,316.32, 1,528,057.46 and 623,982.84
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Solution
The fourth proportional to 1,107,316.32, 1,528,057.46 and 623,982.84 is: 861,074.31
Step by Step Solution
- Step 1: Write the proportion equation
1,107,316.32 : 1,528,057.46 = 623,982.84 : x - Step 2: Convert to fraction form
1,107,316.32/1,528,057.46 = 623,982.84/x - Step 3: Cross multiply
1,107,316.32x = 1,528,057.46 × 623,982.84 - Step 4: Simplify right side
1,107,316.32x = 953,481,633,573.99 - Step 5: Solve for x
x = 953,481,633,573.99/1,107,316.32 - Step 6: Final answer
x = 861,074.31
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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.