Finding the Fourth Proportional to 1,457,239.92, 2,010,987.18 and 812,660.82
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Solution
The fourth proportional to 1,457,239.92, 2,010,987.18 and 812,660.82 is: 1,121,469.75
Step by Step Solution
- Step 1: Write the proportion equation
1,457,239.92 : 2,010,987.18 = 812,660.82 : x - Step 2: Convert to fraction form
1,457,239.92/2,010,987.18 = 812,660.82/x - Step 3: Cross multiply
1,457,239.92x = 2,010,987.18 × 812,660.82 - Step 4: Simplify right side
1,457,239.92x = 1,634,250,490,708.29 - Step 5: Solve for x
x = 1,634,250,490,708.29/1,457,239.92 - Step 6: Final answer
x = 1,121,469.75
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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.