Finding the Fourth Proportional to 513,289.14, 769,868.08 and 213,713.88
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Solution
The fourth proportional to 513,289.14, 769,868.08 and 213,713.88 is: 320,543.49
Step by Step Solution
- Step 1: Write the proportion equation
513,289.14 : 769,868.08 = 213,713.88 : x - Step 2: Convert to fraction form
513,289.14/769,868.08 = 213,713.88/x - Step 3: Cross multiply
513,289.14x = 769,868.08 × 213,713.88 - Step 4: Simplify right side
513,289.14x = 164,531,491,043.66 - Step 5: Solve for x
x = 164,531,491,043.66/513,289.14 - Step 6: Final answer
x = 320,543.49
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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.