Finding the Fourth Proportional to 1,512,885.20, 2,269,174.20 and 515,598.80
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Solution
The fourth proportional to 1,512,885.20, 2,269,174.20 and 515,598.80 is: 773,345.85
Step by Step Solution
- Step 1: Write the proportion equation
1,512,885.20 : 2,269,174.20 = 515,598.80 : x - Step 2: Convert to fraction form
1,512,885.20/2,269,174.20 = 515,598.80/x - Step 3: Cross multiply
1,512,885.20x = 2,269,174.20 × 515,598.80 - Step 4: Simplify right side
1,512,885.20x = 1,169,983,494,510.96 - Step 5: Solve for x
x = 1,169,983,494,510.96/1,512,885.20 - Step 6: Final answer
x = 773,345.85
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1.5x scale
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.