Finding the Fourth Proportional to 409,896.80, 565,658.58 and 228,620.47
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Solution
The fourth proportional to 409,896.80, 565,658.58 and 228,620.47 is: 315,496.80
Step by Step Solution
- Step 1: Write the proportion equation
409,896.80 : 565,658.58 = 228,620.47 : x - Step 2: Convert to fraction form
409,896.80/565,658.58 = 228,620.47/x - Step 3: Cross multiply
409,896.80x = 565,658.58 × 228,620.47 - Step 4: Simplify right side
409,896.80x = 129,321,130,419.13 - Step 5: Solve for x
x = 129,321,130,419.13/409,896.80 - Step 6: Final answer
x = 315,496.80
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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.