Finding the Fourth Proportional to 1,425,207.26, 1,966,786.50 and 780,638.24
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Solution
The fourth proportional to 1,425,207.26, 1,966,786.50 and 780,638.24 is: 1,077,281.03
Step by Step Solution
- Step 1: Write the proportion equation
1,425,207.26 : 1,966,786.50 = 780,638.24 : x - Step 2: Convert to fraction form
1,425,207.26/1,966,786.50 = 780,638.24/x - Step 3: Cross multiply
1,425,207.26x = 1,966,786.50 × 780,638.24 - Step 4: Simplify right side
1,425,207.26x = 1,535,348,751,815.76 - Step 5: Solve for x
x = 1,535,348,751,815.76/1,425,207.26 - Step 6: Final answer
x = 1,077,281.03
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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.