Finding the Fourth Proportional to 1,279,968.48, 1,920,147.12 and 481,305.24
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Solution
The fourth proportional to 1,279,968.48, 1,920,147.12 and 481,305.24 is: 722,030.96
Step by Step Solution
- Step 1: Write the proportion equation
1,279,968.48 : 1,920,147.12 = 481,305.24 : x - Step 2: Convert to fraction form
1,279,968.48/1,920,147.12 = 481,305.24/x - Step 3: Cross multiply
1,279,968.48x = 1,920,147.12 × 481,305.24 - Step 4: Simplify right side
1,279,968.48x = 924,176,870,426.91 - Step 5: Solve for x
x = 924,176,870,426.91/1,279,968.48 - Step 6: Final answer
x = 722,030.96
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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.