Finding the Fourth Proportional to 519,197.44, 716,816.84 and 398,106.12
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Solution
The fourth proportional to 519,197.44, 716,816.84 and 398,106.12 is: 549,635.17
Step by Step Solution
- Step 1: Write the proportion equation
519,197.44 : 716,816.84 = 398,106.12 : x - Step 2: Convert to fraction form
519,197.44/716,816.84 = 398,106.12/x - Step 3: Cross multiply
519,197.44x = 716,816.84 × 398,106.12 - Step 4: Simplify right side
519,197.44x = 285,369,170,923.06 - Step 5: Solve for x
x = 285,369,170,923.06/519,197.44 - Step 6: Final answer
x = 549,635.17
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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.