Finding the Fourth Proportional to 1,703,862.72, 2,351,337.12 and 939,905.28
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Solution
The fourth proportional to 1,703,862.72, 2,351,337.12 and 939,905.28 is: 1,297,072.91
Step by Step Solution
- Step 1: Write the proportion equation
1,703,862.72 : 2,351,337.12 = 939,905.28 : x - Step 2: Convert to fraction form
1,703,862.72/2,351,337.12 = 939,905.28/x - Step 3: Cross multiply
1,703,862.72x = 2,351,337.12 × 939,905.28 - Step 4: Simplify right side
1,703,862.72x = 2,210,034,174,147.99 - Step 5: Solve for x
x = 2,210,034,174,147.99/1,703,862.72 - Step 6: Final answer
x = 1,297,072.91
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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.