Finding the Fourth Proportional to 687,849.24, 949,185.68 and 381,909.81
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Solution
The fourth proportional to 687,849.24, 949,185.68 and 381,909.81 is: 527,009.85
Step by Step Solution
- Step 1: Write the proportion equation
687,849.24 : 949,185.68 = 381,909.81 : x - Step 2: Convert to fraction form
687,849.24/949,185.68 = 381,909.81/x - Step 3: Cross multiply
687,849.24x = 949,185.68 × 381,909.81 - Step 4: Simplify right side
687,849.24x = 362,503,322,703.52 - Step 5: Solve for x
x = 362,503,322,703.52/687,849.24 - Step 6: Final answer
x = 527,009.85
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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.