Finding the Fourth Proportional to 876,011.80, 1,314,017.70 and 211,163.80
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Solution
The fourth proportional to 876,011.80, 1,314,017.70 and 211,163.80 is: 316,745.70
Step by Step Solution
- Step 1: Write the proportion equation
876,011.80 : 1,314,017.70 = 211,163.80 : x - Step 2: Convert to fraction form
876,011.80/1,314,017.70 = 211,163.80/x - Step 3: Cross multiply
876,011.80x = 1,314,017.70 × 211,163.80 - Step 4: Simplify right side
876,011.80x = 277,472,970,799.26 - Step 5: Solve for x
x = 277,472,970,799.26/876,011.80 - Step 6: Final answer
x = 316,745.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.