Finding the Fourth Proportional to 687,924.55, 949,338.86 and 381,999.99
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Solution
The fourth proportional to 687,924.55, 949,338.86 and 381,999.99 is: 527,161.64
Step by Step Solution
- Step 1: Write the proportion equation
687,924.55 : 949,338.86 = 381,999.99 : x - Step 2: Convert to fraction form
687,924.55/949,338.86 = 381,999.99/x - Step 3: Cross multiply
687,924.55x = 949,338.86 × 381,999.99 - Step 4: Simplify right side
687,924.55x = 362,647,437,399.96 - Step 5: Solve for x
x = 362,647,437,399.96/687,924.55 - Step 6: Final answer
x = 527,161.64
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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.