Finding the Fourth Proportional to 685,276.40, 945,673.24 and 383,472.88
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Solution
The fourth proportional to 685,276.40, 945,673.24 and 383,472.88 is: 529,187.99
Step by Step Solution
- Step 1: Write the proportion equation
685,276.40 : 945,673.24 = 383,472.88 : x - Step 2: Convert to fraction form
685,276.40/945,673.24 = 383,472.88/x - Step 3: Cross multiply
685,276.40x = 945,673.24 × 383,472.88 - Step 4: Simplify right side
685,276.40x = 362,640,040,881.73 - Step 5: Solve for x
x = 362,640,040,881.73/685,276.40 - Step 6: Final answer
x = 529,187.99
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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.