Finding the Fourth Proportional to 527,009.22, 727,245.09 and 309,187.62
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Solution
The fourth proportional to 527,009.22, 727,245.09 and 309,187.62 is: 426,662.70
Step by Step Solution
- Step 1: Write the proportion equation
527,009.22 : 727,245.09 = 309,187.62 : x - Step 2: Convert to fraction form
527,009.22/727,245.09 = 309,187.62/x - Step 3: Cross multiply
527,009.22x = 727,245.09 × 309,187.62 - Step 4: Simplify right side
527,009.22x = 224,855,178,533.79 - Step 5: Solve for x
x = 224,855,178,533.79/527,009.22 - Step 6: Final answer
x = 426,662.70
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1.5x scale
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.