Finding the Fourth Proportional to 520,422.44, 717,786.68 and 447,948.63
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Solution
The fourth proportional to 520,422.44, 717,786.68 and 447,948.63 is: 617,828.01
Step by Step Solution
- Step 1: Write the proportion equation
520,422.44 : 717,786.68 = 447,948.63 : x - Step 2: Convert to fraction form
520,422.44/717,786.68 = 447,948.63/x - Step 3: Cross multiply
520,422.44x = 717,786.68 × 447,948.63 - Step 4: Simplify right side
520,422.44x = 321,531,557,698.51 - Step 5: Solve for x
x = 321,531,557,698.51/520,422.44 - Step 6: Final answer
x = 617,828.01
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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.