Finding the Fourth Proportional to 669,164.21, 923,221.77 and 427,588.19
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Solution
The fourth proportional to 669,164.21, 923,221.77 and 427,588.19 is: 589,928.03
Step by Step Solution
- Step 1: Write the proportion equation
669,164.21 : 923,221.77 = 427,588.19 : x - Step 2: Convert to fraction form
669,164.21/923,221.77 = 427,588.19/x - Step 3: Cross multiply
669,164.21x = 923,221.77 × 427,588.19 - Step 4: Simplify right side
669,164.21x = 394,758,725,602.90 - Step 5: Solve for x
x = 394,758,725,602.90/669,164.21 - Step 6: Final answer
x = 589,928.03
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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.