Finding the Fourth Proportional to 486,873.10, 671,872.47 and 272,014.77
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Solution
The fourth proportional to 486,873.10, 671,872.47 and 272,014.77 is: 375,373.45
Step by Step Solution
- Step 1: Write the proportion equation
486,873.10 : 671,872.47 = 272,014.77 : x - Step 2: Convert to fraction form
486,873.10/671,872.47 = 272,014.77/x - Step 3: Cross multiply
486,873.10x = 671,872.47 × 272,014.77 - Step 4: Simplify right side
486,873.10x = 182,759,235,396.38 - Step 5: Solve for x
x = 182,759,235,396.38/486,873.10 - Step 6: Final answer
x = 375,373.45
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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.