Finding the Fourth Proportional to 512,649.60, 769,108.80 and 197,116.80
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Solution
The fourth proportional to 512,649.60, 769,108.80 and 197,116.80 is: 295,726.88
Step by Step Solution
- Step 1: Write the proportion equation
512,649.60 : 769,108.80 = 197,116.80 : x - Step 2: Convert to fraction form
512,649.60/769,108.80 = 197,116.80/x - Step 3: Cross multiply
512,649.60x = 769,108.80 × 197,116.80 - Step 4: Simplify right side
512,649.60x = 151,604,265,507.84 - Step 5: Solve for x
x = 151,604,265,507.84/512,649.60 - Step 6: Final answer
x = 295,726.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.