Finding the Fourth Proportional to 1,977,643.20, 2,966,464.80 and 481,735.20
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Solution
The fourth proportional to 1,977,643.20, 2,966,464.80 and 481,735.20 is: 722,602.80
Step by Step Solution
- Step 1: Write the proportion equation
1,977,643.20 : 2,966,464.80 = 481,735.20 : x - Step 2: Convert to fraction form
1,977,643.20/2,966,464.80 = 481,735.20/x - Step 3: Cross multiply
1,977,643.20x = 2,966,464.80 × 481,735.20 - Step 4: Simplify right side
1,977,643.20x = 1,429,050,513,720.96 - Step 5: Solve for x
x = 1,429,050,513,720.96/1,977,643.20 - Step 6: Final answer
x = 722,602.80
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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.