Finding the Fourth Proportional to 1,286,348.76, 1,930,679.62 and 687,821.52
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Solution
The fourth proportional to 1,286,348.76, 1,930,679.62 and 687,821.52 is: 1,032,350.66
Step by Step Solution
- Step 1: Write the proportion equation
1,286,348.76 : 1,930,679.62 = 687,821.52 : x - Step 2: Convert to fraction form
1,286,348.76/1,930,679.62 = 687,821.52/x - Step 3: Cross multiply
1,286,348.76x = 1,930,679.62 × 687,821.52 - Step 4: Simplify right side
1,286,348.76x = 1,327,962,990,861.42 - Step 5: Solve for x
x = 1,327,962,990,861.42/1,286,348.76 - Step 6: Final answer
x = 1,032,350.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.