Finding the Fourth Proportional to 590,135.20, 885,640.20 and 432,671.20
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Solution
The fourth proportional to 590,135.20, 885,640.20 and 432,671.20 is: 649,327.49
Step by Step Solution
- Step 1: Write the proportion equation
590,135.20 : 885,640.20 = 432,671.20 : x - Step 2: Convert to fraction form
590,135.20/885,640.20 = 432,671.20/x - Step 3: Cross multiply
590,135.20x = 885,640.20 × 432,671.20 - Step 4: Simplify right side
590,135.20x = 383,191,008,102.24 - Step 5: Solve for x
x = 383,191,008,102.24/590,135.20 - Step 6: Final answer
x = 649,327.49
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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.