Finding the Fourth Proportional to 2,752,242.40, 4,129,019.70 and 1,331,129.80
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Solution
The fourth proportional to 2,752,242.40, 4,129,019.70 and 1,331,129.80 is: 1,997,012.02
Step by Step Solution
- Step 1: Write the proportion equation
2,752,242.40 : 4,129,019.70 = 1,331,129.80 : x - Step 2: Convert to fraction form
2,752,242.40/4,129,019.70 = 1,331,129.80/x - Step 3: Cross multiply
2,752,242.40x = 4,129,019.70 × 1,331,129.80 - Step 4: Simplify right side
2,752,242.40x = 5,496,261,167,457.06 - Step 5: Solve for x
x = 5,496,261,167,457.06/2,752,242.40 - Step 6: Final answer
x = 1,997,012.02
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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.