Finding the Fourth Proportional to 856,392.14, 1,181,946.99 and 493,745.02
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Solution
The fourth proportional to 856,392.14, 1,181,946.99 and 493,745.02 is: 681,440.67
Step by Step Solution
- Step 1: Write the proportion equation
856,392.14 : 1,181,946.99 = 493,745.02 : x - Step 2: Convert to fraction form
856,392.14/1,181,946.99 = 493,745.02/x - Step 3: Cross multiply
856,392.14x = 1,181,946.99 × 493,745.02 - Step 4: Simplify right side
856,392.14x = 583,580,436,335.85 - Step 5: Solve for x
x = 583,580,436,335.85/856,392.14 - Step 6: Final answer
x = 681,440.67
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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.