Finding the Fourth Proportional to 637,120.11, 879,245.69 and 361,489.58
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Solution
The fourth proportional to 637,120.11, 879,245.69 and 361,489.58 is: 498,866.92
Step by Step Solution
- Step 1: Write the proportion equation
637,120.11 : 879,245.69 = 361,489.58 : x - Step 2: Convert to fraction form
637,120.11/879,245.69 = 361,489.58/x - Step 3: Cross multiply
637,120.11x = 879,245.69 × 361,489.58 - Step 4: Simplify right side
637,120.11x = 317,838,148,991.23 - Step 5: Solve for x
x = 317,838,148,991.23/637,120.11 - Step 6: Final answer
x = 498,866.92
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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.