Finding the Fourth Proportional to 784,874.21, 1,177,143.64 and 358,288.92
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Solution
The fourth proportional to 784,874.21, 1,177,143.64 and 358,288.92 is: 537,356.84
Step by Step Solution
- Step 1: Write the proportion equation
784,874.21 : 1,177,143.64 = 358,288.92 : x - Step 2: Convert to fraction form
784,874.21/1,177,143.64 = 358,288.92/x - Step 3: Cross multiply
784,874.21x = 1,177,143.64 × 358,288.92 - Step 4: Simplify right side
784,874.21x = 421,757,522,564.75 - Step 5: Solve for x
x = 421,757,522,564.75/784,874.21 - Step 6: Final answer
x = 537,356.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.