Finding the Fourth Proportional to 684,434.28, 944,554.68 and 394,088.92
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Solution
The fourth proportional to 684,434.28, 944,554.68 and 394,088.92 is: 543,863.08
Step by Step Solution
- Step 1: Write the proportion equation
684,434.28 : 944,554.68 = 394,088.92 : x - Step 2: Convert to fraction form
684,434.28/944,554.68 = 394,088.92/x - Step 3: Cross multiply
684,434.28x = 944,554.68 × 394,088.92 - Step 4: Simplify right side
684,434.28x = 372,238,533,722.15 - Step 5: Solve for x
x = 372,238,533,722.15/684,434.28 - Step 6: Final answer
x = 543,863.08
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1.5x scale
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.