Finding the Fourth Proportional to 486,656.10, 671,540.22 and 314,578.08
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Solution
The fourth proportional to 486,656.10, 671,540.22 and 314,578.08 is: 434,088.53
Step by Step Solution
- Step 1: Write the proportion equation
486,656.10 : 671,540.22 = 314,578.08 : x - Step 2: Convert to fraction form
486,656.10/671,540.22 = 314,578.08/x - Step 3: Cross multiply
486,656.10x = 671,540.22 × 314,578.08 - Step 4: Simplify right side
486,656.10x = 211,251,833,050.38 - Step 5: Solve for x
x = 211,251,833,050.38/486,656.10 - Step 6: Final answer
x = 434,088.53
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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.