Finding the Fourth Proportional to 1,912,506.61, 2,639,306.42 and 1,041,389.05
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Solution
The fourth proportional to 1,912,506.61, 2,639,306.42 and 1,041,389.05 is: 1,437,142.64
Step by Step Solution
- Step 1: Write the proportion equation
1,912,506.61 : 2,639,306.42 = 1,041,389.05 : x - Step 2: Convert to fraction form
1,912,506.61/2,639,306.42 = 1,041,389.05/x - Step 3: Cross multiply
1,912,506.61x = 2,639,306.42 × 1,041,389.05 - Step 4: Simplify right side
1,912,506.61x = 2,748,544,800,175.76 - Step 5: Solve for x
x = 2,748,544,800,175.76/1,912,506.61 - Step 6: Final answer
x = 1,437,142.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.