Finding the Fourth Proportional to 1,247,639.52, 1,872,289.68 and 679,163.88
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Solution
The fourth proportional to 1,247,639.52, 1,872,289.68 and 679,163.88 is: 1,019,197.86
Step by Step Solution
- Step 1: Write the proportion equation
1,247,639.52 : 1,872,289.68 = 679,163.88 : x - Step 2: Convert to fraction form
1,247,639.52/1,872,289.68 = 679,163.88/x - Step 3: Cross multiply
1,247,639.52x = 1,872,289.68 × 679,163.88 - Step 4: Simplify right side
1,247,639.52x = 1,271,591,523,552.76 - Step 5: Solve for x
x = 1,271,591,523,552.76/1,247,639.52 - Step 6: Final answer
x = 1,019,197.86
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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.