Finding the Fourth Proportional to 1,975,132.56, 2,725,738.92 and 1,115,729.04
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Solution
The fourth proportional to 1,975,132.56, 2,725,738.92 and 1,115,729.04 is: 1,539,737.70
Step by Step Solution
- Step 1: Write the proportion equation
1,975,132.56 : 2,725,738.92 = 1,115,729.04 : x - Step 2: Convert to fraction form
1,975,132.56/2,725,738.92 = 1,115,729.04/x - Step 3: Cross multiply
1,975,132.56x = 2,725,738.92 × 1,115,729.04 - Step 4: Simplify right side
1,975,132.56x = 3,041,186,068,502.24 - Step 5: Solve for x
x = 3,041,186,068,502.24/1,975,132.56 - Step 6: Final answer
x = 1,539,737.70
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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.