Finding the Fourth Proportional to 545,163.20, 817,744.80 and 520,668.80
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Solution
The fourth proportional to 545,163.20, 817,744.80 and 520,668.80 is: 781,003.20
Step by Step Solution
- Step 1: Write the proportion equation
545,163.20 : 817,744.80 = 520,668.80 : x - Step 2: Convert to fraction form
545,163.20/817,744.80 = 520,668.80/x - Step 3: Cross multiply
545,163.20x = 817,744.80 × 520,668.80 - Step 4: Simplify right side
545,163.20x = 425,774,203,722.24 - Step 5: Solve for x
x = 425,774,203,722.24/545,163.20 - Step 6: Final answer
x = 781,003.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.