Finding the Fourth Proportional to 989,972.94, 1,366,163.34 and 537,263.94
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Solution
The fourth proportional to 989,972.94, 1,366,163.34 and 537,263.94 is: 741,424.61
Step by Step Solution
- Step 1: Write the proportion equation
989,972.94 : 1,366,163.34 = 537,263.94 : x - Step 2: Convert to fraction form
989,972.94/1,366,163.34 = 537,263.94/x - Step 3: Cross multiply
989,972.94x = 1,366,163.34 × 537,263.94 - Step 4: Simplify right side
989,972.94x = 733,990,298,731.96 - Step 5: Solve for x
x = 733,990,298,731.96/989,972.94 - Step 6: Final answer
x = 741,424.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.