Finding the Fourth Proportional to 2,209,433.20, 3,048,988.88 and 1,242,563.20
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Solution
The fourth proportional to 2,209,433.20, 3,048,988.88 and 1,242,563.20 is: 1,714,720.94
Step by Step Solution
- Step 1: Write the proportion equation
2,209,433.20 : 3,048,988.88 = 1,242,563.20 : x - Step 2: Convert to fraction form
2,209,433.20/3,048,988.88 = 1,242,563.20/x - Step 3: Cross multiply
2,209,433.20x = 3,048,988.88 × 1,242,563.20 - Step 4: Simplify right side
2,209,433.20x = 3,788,561,379,497.22 - Step 5: Solve for x
x = 3,788,561,379,497.22/2,209,433.20 - Step 6: Final answer
x = 1,714,720.94
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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.