Finding the Fourth Proportional to 520,424.44, 717,789.44 and 447,950.64
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Solution
The fourth proportional to 520,424.44, 717,789.44 and 447,950.64 is: 617,830.78
Step by Step Solution
- Step 1: Write the proportion equation
520,424.44 : 717,789.44 = 447,950.64 : x - Step 2: Convert to fraction form
520,424.44/717,789.44 = 447,950.64/x - Step 3: Cross multiply
520,424.44x = 717,789.44 × 447,950.64 - Step 4: Simplify right side
520,424.44x = 321,534,239,033.24 - Step 5: Solve for x
x = 321,534,239,033.24/520,424.44 - Step 6: Final answer
x = 617,830.78
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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.