Finding the Fourth Proportional to 399,620.55, 551,634.12 and 246,720.55
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Solution
The fourth proportional to 399,620.55, 551,634.12 and 246,720.55 is: 340,571.76
Step by Step Solution
- Step 1: Write the proportion equation
399,620.55 : 551,634.12 = 246,720.55 : x - Step 2: Convert to fraction form
399,620.55/551,634.12 = 246,720.55/x - Step 3: Cross multiply
399,620.55x = 551,634.12 × 246,720.55 - Step 4: Simplify right side
399,620.55x = 136,099,472,106.08 - Step 5: Solve for x
x = 136,099,472,106.08/399,620.55 - Step 6: Final answer
x = 340,571.76
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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.