Finding the Fourth Proportional to 451,303.13, 622,716.67 and 290,121.23
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Solution
The fourth proportional to 451,303.13, 622,716.67 and 290,121.23 is: 400,314.81
Step by Step Solution
- Step 1: Write the proportion equation
451,303.13 : 622,716.67 = 290,121.23 : x - Step 2: Convert to fraction form
451,303.13/622,716.67 = 290,121.23/x - Step 3: Cross multiply
451,303.13x = 622,716.67 × 290,121.23 - Step 4: Simplify right side
451,303.13x = 180,663,326,241.90 - Step 5: Solve for x
x = 180,663,326,241.90/451,303.13 - Step 6: Final answer
x = 400,314.81
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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.