Finding the Fourth Proportional to 490,548.58, 677,013.15 and 272,778.96
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Solution
The fourth proportional to 490,548.58, 677,013.15 and 272,778.96 is: 376,466.17
Step by Step Solution
- Step 1: Write the proportion equation
490,548.58 : 677,013.15 = 272,778.96 : x - Step 2: Convert to fraction form
490,548.58/677,013.15 = 272,778.96/x - Step 3: Cross multiply
490,548.58x = 677,013.15 × 272,778.96 - Step 4: Simplify right side
490,548.58x = 184,674,942,963.32 - Step 5: Solve for x
x = 184,674,942,963.32/490,548.58 - Step 6: Final answer
x = 376,466.17
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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.