Finding the Fourth Proportional to 464,390.23, 640,928.57 and 283,207.26
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Solution
The fourth proportional to 464,390.23, 640,928.57 and 283,207.26 is: 390,868.74
Step by Step Solution
- Step 1: Write the proportion equation
464,390.23 : 640,928.57 = 283,207.26 : x - Step 2: Convert to fraction form
464,390.23/640,928.57 = 283,207.26/x - Step 3: Cross multiply
464,390.23x = 640,928.57 × 283,207.26 - Step 4: Simplify right side
464,390.23x = 181,515,622,749.38 - Step 5: Solve for x
x = 181,515,622,749.38/464,390.23 - Step 6: Final answer
x = 390,868.74
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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.