Finding the Fourth Proportional to 645,107.68, 967,825.12 and 455,940.24
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Solution
The fourth proportional to 645,107.68, 967,825.12 and 455,940.24 is: 684,025.99
Step by Step Solution
- Step 1: Write the proportion equation
645,107.68 : 967,825.12 = 455,940.24 : x - Step 2: Convert to fraction form
645,107.68/967,825.12 = 455,940.24/x - Step 3: Cross multiply
645,107.68x = 967,825.12 × 455,940.24 - Step 4: Simplify right side
645,107.68x = 441,270,417,490.83 - Step 5: Solve for x
x = 441,270,417,490.83/645,107.68 - Step 6: Final answer
x = 684,025.99
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1.5x scale
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.