Finding the Fourth Proportional to 725,215.68, 1,087,737.12 and 192,775.68
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Solution
The fourth proportional to 725,215.68, 1,087,737.12 and 192,775.68 is: 289,140.55
Step by Step Solution
- Step 1: Write the proportion equation
725,215.68 : 1,087,737.12 = 192,775.68 : x - Step 2: Convert to fraction form
725,215.68/1,087,737.12 = 192,775.68/x - Step 3: Cross multiply
725,215.68x = 1,087,737.12 × 192,775.68 - Step 4: Simplify right side
725,215.68x = 209,689,262,969.24 - Step 5: Solve for x
x = 209,689,262,969.24/725,215.68 - Step 6: Final answer
x = 289,140.55
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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.