Finding the Fourth Proportional to 522,443.19, 720,970.97 and 304,660.65
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Solution
The fourth proportional to 522,443.19, 720,970.97 and 304,660.65 is: 420,431.33
Step by Step Solution
- Step 1: Write the proportion equation
522,443.19 : 720,970.97 = 304,660.65 : x - Step 2: Convert to fraction form
522,443.19/720,970.97 = 304,660.65/x - Step 3: Cross multiply
522,443.19x = 720,970.97 × 304,660.65 - Step 4: Simplify right side
522,443.19x = 219,651,482,828.03 - Step 5: Solve for x
x = 219,651,482,828.03/522,443.19 - Step 6: Final answer
x = 420,431.33
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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.