Finding the Fourth Proportional to 490,916.13, 677,460.02 and 276,051.62
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Solution
The fourth proportional to 490,916.13, 677,460.02 and 276,051.62 is: 380,948.85
Step by Step Solution
- Step 1: Write the proportion equation
490,916.13 : 677,460.02 = 276,051.62 : x - Step 2: Convert to fraction form
490,916.13/677,460.02 = 276,051.62/x - Step 3: Cross multiply
490,916.13x = 677,460.02 × 276,051.62 - Step 4: Simplify right side
490,916.13x = 187,013,936,006.23 - Step 5: Solve for x
x = 187,013,936,006.23/490,916.13 - Step 6: Final answer
x = 380,948.85
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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.