Finding the Fourth Proportional to 668,974.74, 923,213.06 and 382,494.75
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Solution
The fourth proportional to 668,974.74, 923,213.06 and 382,494.75 is: 527,858.72
Step by Step Solution
- Step 1: Write the proportion equation
668,974.74 : 923,213.06 = 382,494.75 : x - Step 2: Convert to fraction form
668,974.74/923,213.06 = 382,494.75/x - Step 3: Cross multiply
668,974.74x = 923,213.06 × 382,494.75 - Step 4: Simplify right side
668,974.74x = 353,124,148,581.44 - Step 5: Solve for x
x = 353,124,148,581.44/668,974.74 - Step 6: Final answer
x = 527,858.72
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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.