Finding the Fourth Proportional to 3,418,649.48, 5,126,081.06 and 1,398,312.09
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Solution
The fourth proportional to 3,418,649.48, 5,126,081.06 and 1,398,312.09 is: 2,096,693.79
Step by Step Solution
- Step 1: Write the proportion equation
3,418,649.48 : 5,126,081.06 = 1,398,312.09 : x - Step 2: Convert to fraction form
3,418,649.48/5,126,081.06 = 1,398,312.09/x - Step 3: Cross multiply
3,418,649.48x = 5,126,081.06 × 1,398,312.09 - Step 4: Simplify right side
3,418,649.48x = 7,167,861,113,526.46 - Step 5: Solve for x
x = 7,167,861,113,526.46/3,418,649.48 - Step 6: Final answer
x = 2,096,693.79
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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.