Finding the Fourth Proportional to 543,447.36, 749,980.80 and 301,729.98
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Solution
The fourth proportional to 543,447.36, 749,980.80 and 301,729.98 is: 416,400.39
Step by Step Solution
- Step 1: Write the proportion equation
543,447.36 : 749,980.80 = 301,729.98 : x - Step 2: Convert to fraction form
543,447.36/749,980.80 = 301,729.98/x - Step 3: Cross multiply
543,447.36x = 749,980.80 × 301,729.98 - Step 4: Simplify right side
543,447.36x = 226,291,691,784.38 - Step 5: Solve for x
x = 226,291,691,784.38/543,447.36 - Step 6: Final answer
x = 416,400.39
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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.