Finding the Fourth Proportional to 1,315,723.97, 1,815,704.62 and 712,111.97
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Solution
The fourth proportional to 1,315,723.97, 1,815,704.62 and 712,111.97 is: 982,717.52
Step by Step Solution
- Step 1: Write the proportion equation
1,315,723.97 : 1,815,704.62 = 712,111.97 : x - Step 2: Convert to fraction form
1,315,723.97/1,815,704.62 = 712,111.97/x - Step 3: Cross multiply
1,315,723.97x = 1,815,704.62 × 712,111.97 - Step 4: Simplify right side
1,315,723.97x = 1,292,984,996,645.28 - Step 5: Solve for x
x = 1,292,984,996,645.28/1,315,723.97 - Step 6: Final answer
x = 982,717.52
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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.