Finding the Fourth Proportional to 1,577,729.40, 2,366,939.70 and 512,590.20
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Solution
The fourth proportional to 1,577,729.40, 2,366,939.70 and 512,590.20 is: 768,997.58
Step by Step Solution
- Step 1: Write the proportion equation
1,577,729.40 : 2,366,939.70 = 512,590.20 : x - Step 2: Convert to fraction form
1,577,729.40/2,366,939.70 = 512,590.20/x - Step 3: Cross multiply
1,577,729.40x = 2,366,939.70 × 512,590.20 - Step 4: Simplify right side
1,577,729.40x = 1,213,270,094,210.94 - Step 5: Solve for x
x = 1,213,270,094,210.94/1,577,729.40 - Step 6: Final answer
x = 768,997.58
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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.