Finding the Fourth Proportional to 499,221.63, 688,926.21 and 272,867.13
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Solution
The fourth proportional to 499,221.63, 688,926.21 and 272,867.13 is: 376,556.84
Step by Step Solution
- Step 1: Write the proportion equation
499,221.63 : 688,926.21 = 272,867.13 : x - Step 2: Convert to fraction form
499,221.63/688,926.21 = 272,867.13/x - Step 3: Cross multiply
499,221.63x = 688,926.21 × 272,867.13 - Step 4: Simplify right side
499,221.63x = 187,985,317,704.48 - Step 5: Solve for x
x = 187,985,317,704.48/499,221.63 - Step 6: Final answer
x = 376,556.84
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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.