Finding the Fourth Proportional to 451,325.70, 622,747.74 and 290,143.80
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Solution
The fourth proportional to 451,325.70, 622,747.74 and 290,143.80 is: 400,345.90
Step by Step Solution
- Step 1: Write the proportion equation
451,325.70 : 622,747.74 = 290,143.80 : x - Step 2: Convert to fraction form
451,325.70/622,747.74 = 290,143.80/x - Step 3: Cross multiply
451,325.70x = 622,747.74 × 290,143.80 - Step 4: Simplify right side
451,325.70x = 180,686,395,725.01 - Step 5: Solve for x
x = 180,686,395,725.01/451,325.70 - Step 6: Final answer
x = 400,345.90
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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.