Finding the Fourth Proportional to 457,630.51, 631,490.40 and 261,396.09
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Solution
The fourth proportional to 457,630.51, 631,490.40 and 261,396.09 is: 360,703.92
Step by Step Solution
- Step 1: Write the proportion equation
457,630.51 : 631,490.40 = 261,396.09 : x - Step 2: Convert to fraction form
457,630.51/631,490.40 = 261,396.09/x - Step 3: Cross multiply
457,630.51x = 631,490.40 × 261,396.09 - Step 4: Simplify right side
457,630.51x = 165,069,120,391.65 - Step 5: Solve for x
x = 165,069,120,391.65/457,630.51 - Step 6: Final answer
x = 360,703.92
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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.