Finding the Fourth Proportional to 557,485.80, 768,568.68 and 383,050.68
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Solution
The fourth proportional to 557,485.80, 768,568.68 and 383,050.68 is: 528,086.55
Step by Step Solution
- Step 1: Write the proportion equation
557,485.80 : 768,568.68 = 383,050.68 : x - Step 2: Convert to fraction form
557,485.80/768,568.68 = 383,050.68/x - Step 3: Cross multiply
557,485.80x = 768,568.68 × 383,050.68 - Step 4: Simplify right side
557,485.80x = 294,400,755,500.70 - Step 5: Solve for x
x = 294,400,755,500.70/557,485.80 - Step 6: Final answer
x = 528,086.55
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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.