Finding the Fourth Proportional to 1,931,408.70, 2,897,113.41 and 511,575.90
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Solution
The fourth proportional to 1,931,408.70, 2,897,113.41 and 511,575.90 is: 767,363.95
Step by Step Solution
- Step 1: Write the proportion equation
1,931,408.70 : 2,897,113.41 = 511,575.90 : x - Step 2: Convert to fraction form
1,931,408.70/2,897,113.41 = 511,575.90/x - Step 3: Cross multiply
1,931,408.70x = 2,897,113.41 × 511,575.90 - Step 4: Simplify right side
1,931,408.70x = 1,482,093,400,122.82 - Step 5: Solve for x
x = 1,482,093,400,122.82/1,931,408.70 - Step 6: Final answer
x = 767,363.95
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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.