Finding the Fourth Proportional to 1,991,823.18, 2,990,723.68 and 1,139,856.84
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Solution
The fourth proportional to 1,991,823.18, 2,990,723.68 and 1,139,856.84 is: 1,711,495.72
Step by Step Solution
- Step 1: Write the proportion equation
1,991,823.18 : 2,990,723.68 = 1,139,856.84 : x - Step 2: Convert to fraction form
1,991,823.18/2,990,723.68 = 1,139,856.84/x - Step 3: Cross multiply
1,991,823.18x = 2,990,723.68 × 1,139,856.84 - Step 4: Simplify right side
1,991,823.18x = 3,408,996,843,197.97 - Step 5: Solve for x
x = 3,408,996,843,197.97/1,991,823.18 - Step 6: Final answer
x = 1,711,495.72
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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.