Finding the Fourth Proportional to 1,919,854.24, 2,880,210.91 and 721,786.94
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Solution
The fourth proportional to 1,919,854.24, 2,880,210.91 and 721,786.94 is: 1,082,841.90
Step by Step Solution
- Step 1: Write the proportion equation
1,919,854.24 : 2,880,210.91 = 721,786.94 : x - Step 2: Convert to fraction form
1,919,854.24/2,880,210.91 = 721,786.94/x - Step 3: Cross multiply
1,919,854.24x = 2,880,210.91 × 721,786.94 - Step 4: Simplify right side
1,919,854.24x = 2,078,898,621,079.31 - Step 5: Solve for x
x = 2,078,898,621,079.31/1,919,854.24 - Step 6: Final answer
x = 1,082,841.90
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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.