Finding the Fourth Proportional to 1,202,971.15, 1,660,036.73 and 686,704.53
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Solution
The fourth proportional to 1,202,971.15, 1,660,036.73 and 686,704.53 is: 947,616.04
Step by Step Solution
- Step 1: Write the proportion equation
1,202,971.15 : 1,660,036.73 = 686,704.53 : x - Step 2: Convert to fraction form
1,202,971.15/1,660,036.73 = 686,704.53/x - Step 3: Cross multiply
1,202,971.15x = 1,660,036.73 × 686,704.53 - Step 4: Simplify right side
1,202,971.15x = 1,139,954,749,111.71 - Step 5: Solve for x
x = 1,139,954,749,111.71/1,202,971.15 - Step 6: Final answer
x = 947,616.04
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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.