Finding the Fourth Proportional to 668,923.98, 923,115.72 and 382,450.08
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Solution
The fourth proportional to 668,923.98, 923,115.72 and 382,450.08 is: 527,781.47
Step by Step Solution
- Step 1: Write the proportion equation
668,923.98 : 923,115.72 = 382,450.08 : x - Step 2: Convert to fraction form
668,923.98/923,115.72 = 382,450.08/x - Step 3: Cross multiply
668,923.98x = 923,115.72 × 382,450.08 - Step 4: Simplify right side
668,923.98x = 353,045,680,963.26 - Step 5: Solve for x
x = 353,045,680,963.26/668,923.98 - Step 6: Final answer
x = 527,781.47
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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.