Finding the Fourth Proportional to 633,396.98, 874,078.80 and 361,550.99
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Solution
The fourth proportional to 633,396.98, 874,078.80 and 361,550.99 is: 498,935.21
Step by Step Solution
- Step 1: Write the proportion equation
633,396.98 : 874,078.80 = 361,550.99 : x - Step 2: Convert to fraction form
633,396.98/874,078.80 = 361,550.99/x - Step 3: Cross multiply
633,396.98x = 874,078.80 × 361,550.99 - Step 4: Simplify right side
633,396.98x = 316,024,051,107.62 - Step 5: Solve for x
x = 316,024,051,107.62/633,396.98 - Step 6: Final answer
x = 498,935.21
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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.