Finding the Fourth Proportional to 1,272,720.09, 1,756,386.99 and 691,982.29
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Solution
The fourth proportional to 1,272,720.09, 1,756,386.99 and 691,982.29 is: 954,953.65
Step by Step Solution
- Step 1: Write the proportion equation
1,272,720.09 : 1,756,386.99 = 691,982.29 : x - Step 2: Convert to fraction form
1,272,720.09/1,756,386.99 = 691,982.29/x - Step 3: Cross multiply
1,272,720.09x = 1,756,386.99 × 691,982.29 - Step 4: Simplify right side
1,272,720.09x = 1,215,388,693,661.89 - Step 5: Solve for x
x = 1,215,388,693,661.89/1,272,720.09 - Step 6: Final answer
x = 954,953.65
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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.