Finding the Fourth Proportional to 3,979,362.42, 5,970,305.62 and 1,420,521.23
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Solution
The fourth proportional to 3,979,362.42, 5,970,305.62 and 1,420,521.23 is: 2,131,232.34
Step by Step Solution
- Step 1: Write the proportion equation
3,979,362.42 : 5,970,305.62 = 1,420,521.23 : x - Step 2: Convert to fraction form
3,979,362.42/5,970,305.62 = 1,420,521.23/x - Step 3: Cross multiply
3,979,362.42x = 5,970,305.62 × 1,420,521.23 - Step 4: Simplify right side
3,979,362.42x = 8,480,945,882,798.31 - Step 5: Solve for x
x = 8,480,945,882,798.31/3,979,362.42 - Step 6: Final answer
x = 2,131,232.34
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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.