Finding the Fourth Proportional to 391,809.24, 587,714.49 and 107,503.65
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Solution
The fourth proportional to 391,809.24, 587,714.49 and 107,503.65 is: 161,255.65
Step by Step Solution
- Step 1: Write the proportion equation
391,809.24 : 587,714.49 = 107,503.65 : x - Step 2: Convert to fraction form
391,809.24/587,714.49 = 107,503.65/x - Step 3: Cross multiply
391,809.24x = 587,714.49 × 107,503.65 - Step 4: Simplify right side
391,809.24x = 63,181,452,832.89 - Step 5: Solve for x
x = 63,181,452,832.89/391,809.24 - Step 6: Final answer
x = 161,255.65
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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.