Finding the Fourth Proportional to 1,263,718.26, 1,743,931.08 and 690,760.71
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Solution
The fourth proportional to 1,263,718.26, 1,743,931.08 and 690,760.71 is: 953,249.71
Step by Step Solution
- Step 1: Write the proportion equation
1,263,718.26 : 1,743,931.08 = 690,760.71 : x - Step 2: Convert to fraction form
1,263,718.26/1,743,931.08 = 690,760.71/x - Step 3: Cross multiply
1,263,718.26x = 1,743,931.08 × 690,760.71 - Step 4: Simplify right side
1,263,718.26x = 1,204,639,071,011.87 - Step 5: Solve for x
x = 1,204,639,071,011.87/1,263,718.26 - Step 6: Final answer
x = 953,249.71
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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.