Finding the Fourth Proportional to 420,909.44, 580,845.48 and 229,923.68
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Solution
The fourth proportional to 420,909.44, 580,845.48 and 229,923.68 is: 317,289.46
Step by Step Solution
- Step 1: Write the proportion equation
420,909.44 : 580,845.48 = 229,923.68 : x - Step 2: Convert to fraction form
420,909.44/580,845.48 = 229,923.68/x - Step 3: Cross multiply
420,909.44x = 580,845.48 × 229,923.68 - Step 4: Simplify right side
420,909.44x = 133,550,130,272.97 - Step 5: Solve for x
x = 133,550,130,272.97/420,909.44 - Step 6: Final answer
x = 317,289.46
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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.