Finding the Fourth Proportional to 439,237.02, 606,212.10 and 278,107.02
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Solution
The fourth proportional to 439,237.02, 606,212.10 and 278,107.02 is: 383,828.85
Step by Step Solution
- Step 1: Write the proportion equation
439,237.02 : 606,212.10 = 278,107.02 : x - Step 2: Convert to fraction form
439,237.02/606,212.10 = 278,107.02/x - Step 3: Cross multiply
439,237.02x = 606,212.10 × 278,107.02 - Step 4: Simplify right side
439,237.02x = 168,591,840,618.94 - Step 5: Solve for x
x = 168,591,840,618.94/439,237.02 - Step 6: Final answer
x = 383,828.85
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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.