Finding the Fourth Proportional to 527,467.80, 791,201.70 and 278,635.80
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Solution
The fourth proportional to 527,467.80, 791,201.70 and 278,635.80 is: 417,953.70
Step by Step Solution
- Step 1: Write the proportion equation
527,467.80 : 791,201.70 = 278,635.80 : x - Step 2: Convert to fraction form
527,467.80/791,201.70 = 278,635.80/x - Step 3: Cross multiply
527,467.80x = 791,201.70 × 278,635.80 - Step 4: Simplify right side
527,467.80x = 220,457,118,640.86 - Step 5: Solve for x
x = 220,457,118,640.86/527,467.80 - Step 6: Final answer
x = 417,953.70
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1.5x scale
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.