Finding the Fourth Proportional to 2,119,500.40, 3,178,266.45 and 920,805.70
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Solution
The fourth proportional to 2,119,500.40, 3,178,266.45 and 920,805.70 is: 1,380,780.99
Step by Step Solution
- Step 1: Write the proportion equation
2,119,500.40 : 3,178,266.45 = 920,805.70 : x - Step 2: Convert to fraction form
2,119,500.40/3,178,266.45 = 920,805.70/x - Step 3: Cross multiply
2,119,500.40x = 3,178,266.45 × 920,805.70 - Step 4: Simplify right side
2,119,500.40x = 2,926,565,863,278.77 - Step 5: Solve for x
x = 2,926,565,863,278.77/2,119,500.40 - Step 6: Final answer
x = 1,380,780.99
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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.