Finding the Fourth Proportional to 1,721,560.80, 2,579,230.80 and 1,472,728.80
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Solution
The fourth proportional to 1,721,560.80, 2,579,230.80 and 1,472,728.80 is: 2,206,432.37
Step by Step Solution
- Step 1: Write the proportion equation
1,721,560.80 : 2,579,230.80 = 1,472,728.80 : x - Step 2: Convert to fraction form
1,721,560.80/2,579,230.80 = 1,472,728.80/x - Step 3: Cross multiply
1,721,560.80x = 2,579,230.80 × 1,472,728.80 - Step 4: Simplify right side
1,721,560.80x = 3,798,507,481,007.04 - Step 5: Solve for x
x = 3,798,507,481,007.04/1,721,560.80 - Step 6: Final answer
x = 2,206,432.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.