Finding the Fourth Proportional to 1,306,659.09, 1,803,128.22 and 725,919.70
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Solution
The fourth proportional to 1,306,659.09, 1,803,128.22 and 725,919.70 is: 1,001,735.12
Step by Step Solution
- Step 1: Write the proportion equation
1,306,659.09 : 1,803,128.22 = 725,919.70 : x - Step 2: Convert to fraction form
1,306,659.09/1,803,128.22 = 725,919.70/x - Step 3: Cross multiply
1,306,659.09x = 1,803,128.22 × 725,919.70 - Step 4: Simplify right side
1,306,659.09x = 1,308,926,296,523.93 - Step 5: Solve for x
x = 1,308,926,296,523.93/1,306,659.09 - Step 6: Final answer
x = 1,001,735.12
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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.