Finding the Fourth Proportional to 1,717,723.80, 2,576,585.70 and 1,638,991.80
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Solution
The fourth proportional to 1,717,723.80, 2,576,585.70 and 1,638,991.80 is: 2,458,487.70
Step by Step Solution
- Step 1: Write the proportion equation
1,717,723.80 : 2,576,585.70 = 1,638,991.80 : x - Step 2: Convert to fraction form
1,717,723.80/2,576,585.70 = 1,638,991.80/x - Step 3: Cross multiply
1,717,723.80x = 2,576,585.70 × 1,638,991.80 - Step 4: Simplify right side
1,717,723.80x = 4,223,002,834,297.26 - Step 5: Solve for x
x = 4,223,002,834,297.26/1,717,723.80 - Step 6: Final answer
x = 2,458,487.70
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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.