Finding the Fourth Proportional to 556,629.63, 768,149.18 and 301,980.75
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Solution
The fourth proportional to 556,629.63, 768,149.18 and 301,980.75 is: 416,733.59
Step by Step Solution
- Step 1: Write the proportion equation
556,629.63 : 768,149.18 = 301,980.75 : x - Step 2: Convert to fraction form
556,629.63/768,149.18 = 301,980.75/x - Step 3: Cross multiply
556,629.63x = 768,149.18 × 301,980.75 - Step 4: Simplify right side
556,629.63x = 231,966,263,978.38 - Step 5: Solve for x
x = 231,966,263,978.38/556,629.63 - Step 6: Final answer
x = 416,733.59
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1.5x scale
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.