Finding the Fourth Proportional to 1,282,679.43, 1,770,134.36 and 709,772.91
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Solution
The fourth proportional to 1,282,679.43, 1,770,134.36 and 709,772.91 is: 979,506.95
Step by Step Solution
- Step 1: Write the proportion equation
1,282,679.43 : 1,770,134.36 = 709,772.91 : x - Step 2: Convert to fraction form
1,282,679.43/1,770,134.36 = 709,772.91/x - Step 3: Cross multiply
1,282,679.43x = 1,770,134.36 × 709,772.91 - Step 4: Simplify right side
1,282,679.43x = 1,256,393,412,239.32 - Step 5: Solve for x
x = 1,256,393,412,239.32/1,282,679.43 - Step 6: Final answer
x = 979,506.95
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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.