Finding the Fourth Proportional to 419,461.74, 578,866.10 and 228,474.68
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Solution
The fourth proportional to 419,461.74, 578,866.10 and 228,474.68 is: 315,299.90
Step by Step Solution
- Step 1: Write the proportion equation
419,461.74 : 578,866.10 = 228,474.68 : x - Step 2: Convert to fraction form
419,461.74/578,866.10 = 228,474.68/x - Step 3: Cross multiply
419,461.74x = 578,866.10 × 228,474.68 - Step 4: Simplify right side
419,461.74x = 132,256,242,923.64 - Step 5: Solve for x
x = 132,256,242,923.64/419,461.74 - Step 6: Final answer
x = 315,299.90
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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.