Finding the Fourth Proportional to 420,920.06, 580,882.44 and 229,945.74
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Solution
The fourth proportional to 420,920.06, 580,882.44 and 229,945.74 is: 317,332.09
Step by Step Solution
- Step 1: Write the proportion equation
420,920.06 : 580,882.44 = 229,945.74 : x - Step 2: Convert to fraction form
420,920.06/580,882.44 = 229,945.74/x - Step 3: Cross multiply
420,920.06x = 580,882.44 × 229,945.74 - Step 4: Simplify right side
420,920.06x = 133,571,442,518.81 - Step 5: Solve for x
x = 133,571,442,518.81/420,920.06 - Step 6: Final answer
x = 317,332.09
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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.