Finding the Fourth Proportional to 3,980,284.79, 5,492,809.26 and 2,261,499.62
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Solution
The fourth proportional to 3,980,284.79, 5,492,809.26 and 2,261,499.62 is: 3,120,878.71
Step by Step Solution
- Step 1: Write the proportion equation
3,980,284.79 : 5,492,809.26 = 2,261,499.62 : x - Step 2: Convert to fraction form
3,980,284.79/5,492,809.26 = 2,261,499.62/x - Step 3: Cross multiply
3,980,284.79x = 5,492,809.26 × 2,261,499.62 - Step 4: Simplify right side
3,980,284.79x = 12,421,986,026,758.44 - Step 5: Solve for x
x = 12,421,986,026,758.44/3,980,284.79 - Step 6: Final answer
x = 3,120,878.71
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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.