Finding the Fourth Proportional to 531,863.20, 733,987.60 and 305,554.08
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Solution
The fourth proportional to 531,863.20, 733,987.60 and 305,554.08 is: 421,674.04
Step by Step Solution
- Step 1: Write the proportion equation
531,863.20 : 733,987.60 = 305,554.08 : x - Step 2: Convert to fraction form
531,863.20/733,987.60 = 305,554.08/x - Step 3: Cross multiply
531,863.20x = 733,987.60 × 305,554.08 - Step 4: Simplify right side
531,863.20x = 224,272,905,849.41 - Step 5: Solve for x
x = 224,272,905,849.41/531,863.20 - Step 6: Final answer
x = 421,674.04
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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.