Finding the Fourth Proportional to 3,171,854.18, 4,377,163.08 and 1,721,549.68
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Solution
The fourth proportional to 3,171,854.18, 4,377,163.08 and 1,721,549.68 is: 2,375,740.90
Step by Step Solution
- Step 1: Write the proportion equation
3,171,854.18 : 4,377,163.08 = 1,721,549.68 : x - Step 2: Convert to fraction form
3,171,854.18/4,377,163.08 = 1,721,549.68/x - Step 3: Cross multiply
3,171,854.18x = 4,377,163.08 × 1,721,549.68 - Step 4: Simplify right side
3,171,854.18x = 7,535,503,710,132.54 - Step 5: Solve for x
x = 7,535,503,710,132.54/3,171,854.18 - Step 6: Final answer
x = 2,375,740.90
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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.