Finding the Fourth Proportional to 787,919.99, 1,179,986.09 and 449,937.36
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Solution
The fourth proportional to 787,919.99, 1,179,986.09 and 449,937.36 is: 673,824.54
Step by Step Solution
- Step 1: Write the proportion equation
787,919.99 : 1,179,986.09 = 449,937.36 : x - Step 2: Convert to fraction form
787,919.99/1,179,986.09 = 449,937.36/x - Step 3: Cross multiply
787,919.99x = 1,179,986.09 × 449,937.36 - Step 4: Simplify right side
787,919.99x = 530,919,823,921.64 - Step 5: Solve for x
x = 530,919,823,921.64/787,919.99 - Step 6: Final answer
x = 673,824.54
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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.