Finding the Fourth Proportional to 647,467.70, 971,201.55 and 395,525.30
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Solution
The fourth proportional to 647,467.70, 971,201.55 and 395,525.30 is: 593,287.95
Step by Step Solution
- Step 1: Write the proportion equation
647,467.70 : 971,201.55 = 395,525.30 : x - Step 2: Convert to fraction form
647,467.70/971,201.55 = 395,525.30/x - Step 3: Cross multiply
647,467.70x = 971,201.55 × 395,525.30 - Step 4: Simplify right side
647,467.70x = 384,134,784,424.22 - Step 5: Solve for x
x = 384,134,784,424.22/647,467.70 - Step 6: Final answer
x = 593,287.95
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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.