Finding the Fourth Proportional to 414,439.21, 621,656.75 and 358,107.90
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Solution
The fourth proportional to 414,439.21, 621,656.75 and 358,107.90 is: 537,160.07
Step by Step Solution
- Step 1: Write the proportion equation
414,439.21 : 621,656.75 = 358,107.90 : x - Step 2: Convert to fraction form
414,439.21/621,656.75 = 358,107.90/x - Step 3: Cross multiply
414,439.21x = 621,656.75 × 358,107.90 - Step 4: Simplify right side
414,439.21x = 222,620,194,158.60 - Step 5: Solve for x
x = 222,620,194,158.60/414,439.21 - Step 6: Final answer
x = 537,160.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.