Finding the Fourth Proportional to 1,205,215.36, 1,663,141.44 and 661,337.44
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Solution
The fourth proportional to 1,205,215.36, 1,663,141.44 and 661,337.44 is: 912,615.07
Step by Step Solution
- Step 1: Write the proportion equation
1,205,215.36 : 1,663,141.44 = 661,337.44 : x - Step 2: Convert to fraction form
1,205,215.36/1,663,141.44 = 661,337.44/x - Step 3: Cross multiply
1,205,215.36x = 1,663,141.44 × 661,337.44 - Step 4: Simplify right side
1,205,215.36x = 1,099,897,702,287.51 - Step 5: Solve for x
x = 1,099,897,702,287.51/1,205,215.36 - Step 6: Final answer
x = 912,615.07
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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.