Finding the Fourth Proportional to 771,571.14, 1,064,785.21 and 440,420.26
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Solution
The fourth proportional to 771,571.14, 1,064,785.21 and 440,420.26 is: 607,789.68
Step by Step Solution
- Step 1: Write the proportion equation
771,571.14 : 1,064,785.21 = 440,420.26 : x - Step 2: Convert to fraction form
771,571.14/1,064,785.21 = 440,420.26/x - Step 3: Cross multiply
771,571.14x = 1,064,785.21 × 440,420.26 - Step 4: Simplify right side
771,571.14x = 468,952,975,269.34 - Step 5: Solve for x
x = 468,952,975,269.34/771,571.14 - Step 6: Final answer
x = 607,789.68
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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.