Finding the Fourth Proportional to 519,194.44, 716,812.68 and 398,103.10
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Solution
The fourth proportional to 519,194.44, 716,812.68 and 398,103.10 is: 549,630.98
Step by Step Solution
- Step 1: Write the proportion equation
519,194.44 : 716,812.68 = 398,103.10 : x - Step 2: Convert to fraction form
519,194.44/716,812.68 = 398,103.10/x - Step 3: Cross multiply
519,194.44x = 716,812.68 × 398,103.10 - Step 4: Simplify right side
519,194.44x = 285,365,350,027.31 - Step 5: Solve for x
x = 285,365,350,027.31/519,194.44 - Step 6: Final answer
x = 549,630.98
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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.