Finding the Fourth Proportional to 637,620.99, 879,949.55 and 361,998.17
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Solution
The fourth proportional to 637,620.99, 879,949.55 and 361,998.17 is: 499,575.96
Step by Step Solution
- Step 1: Write the proportion equation
637,620.99 : 879,949.55 = 361,998.17 : x - Step 2: Convert to fraction form
637,620.99/879,949.55 = 361,998.17/x - Step 3: Cross multiply
637,620.99x = 879,949.55 × 361,998.17 - Step 4: Simplify right side
637,620.99x = 318,540,120,582.59 - Step 5: Solve for x
x = 318,540,120,582.59/637,620.99 - Step 6: Final answer
x = 499,575.96
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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.