Finding the Fourth Proportional to 511,021.95, 767,211.16 and 436,620.21
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Solution
The fourth proportional to 511,021.95, 767,211.16 and 436,620.21 is: 655,509.80
Step by Step Solution
- Step 1: Write the proportion equation
511,021.95 : 767,211.16 = 436,620.21 : x - Step 2: Convert to fraction form
511,021.95/767,211.16 = 436,620.21/x - Step 3: Cross multiply
511,021.95x = 767,211.16 × 436,620.21 - Step 4: Simplify right side
511,021.95x = 334,979,892,865.94 - Step 5: Solve for x
x = 334,979,892,865.94/511,021.95 - Step 6: Final answer
x = 655,509.80
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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.