Finding the Fourth Proportional to 2,660,720.40, 3,991,080.60 and 977,605.20
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Solution
The fourth proportional to 2,660,720.40, 3,991,080.60 and 977,605.20 is: 1,466,407.80
Step by Step Solution
- Step 1: Write the proportion equation
2,660,720.40 : 3,991,080.60 = 977,605.20 : x - Step 2: Convert to fraction form
2,660,720.40/3,991,080.60 = 977,605.20/x - Step 3: Cross multiply
2,660,720.40x = 3,991,080.60 × 977,605.20 - Step 4: Simplify right side
2,660,720.40x = 3,901,701,148,179.12 - Step 5: Solve for x
x = 3,901,701,148,179.12/2,660,720.40 - Step 6: Final answer
x = 1,466,407.80
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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.