Finding the Fourth Proportional to 5,239,982.79, 7,859,974.18 and 1,453,465.66
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Solution
The fourth proportional to 5,239,982.79, 7,859,974.18 and 1,453,465.66 is: 2,180,198.49
Step by Step Solution
- Step 1: Write the proportion equation
5,239,982.79 : 7,859,974.18 = 1,453,465.66 : x - Step 2: Convert to fraction form
5,239,982.79/7,859,974.18 = 1,453,465.66/x - Step 3: Cross multiply
5,239,982.79x = 7,859,974.18 × 1,453,465.66 - Step 4: Simplify right side
5,239,982.79x = 11,424,202,559,116.66 - Step 5: Solve for x
x = 11,424,202,559,116.66/5,239,982.79 - Step 6: Final answer
x = 2,180,198.49
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Double scale
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Similar ratio
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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.