Finding the Fourth Proportional to 2,187,745.56, 3,019,089.42 and 1,207,685.16
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Solution
The fourth proportional to 2,187,745.56, 3,019,089.42 and 1,207,685.16 is: 1,666,605.82
Step by Step Solution
- Step 1: Write the proportion equation
2,187,745.56 : 3,019,089.42 = 1,207,685.16 : x - Step 2: Convert to fraction form
2,187,745.56/3,019,089.42 = 1,207,685.16/x - Step 3: Cross multiply
2,187,745.56x = 3,019,089.42 × 1,207,685.16 - Step 4: Simplify right side
2,187,745.56x = 3,646,109,489,247.01 - Step 5: Solve for x
x = 3,646,109,489,247.01/2,187,745.56 - Step 6: Final answer
x = 1,666,605.82
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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.