Finding the Fourth Proportional to 669,074.18, 923,336.08 and 378,685.73
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Solution
The fourth proportional to 669,074.18, 923,336.08 and 378,685.73 is: 522,594.07
Step by Step Solution
- Step 1: Write the proportion equation
669,074.18 : 923,336.08 = 378,685.73 : x - Step 2: Convert to fraction form
669,074.18/923,336.08 = 378,685.73/x - Step 3: Cross multiply
669,074.18x = 923,336.08 × 378,685.73 - Step 4: Simplify right side
669,074.18x = 349,654,198,851.76 - Step 5: Solve for x
x = 349,654,198,851.76/669,074.18 - Step 6: Final answer
x = 522,594.07
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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.