Finding the Fourth Proportional to 490,216.62, 676,515.36 and 272,434.47
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Solution
The fourth proportional to 490,216.62, 676,515.36 and 272,434.47 is: 375,968.70
Step by Step Solution
- Step 1: Write the proportion equation
490,216.62 : 676,515.36 = 272,434.47 : x - Step 2: Convert to fraction form
490,216.62/676,515.36 = 272,434.47/x - Step 3: Cross multiply
490,216.62x = 676,515.36 × 272,434.47 - Step 4: Simplify right side
490,216.62x = 184,306,103,548.46 - Step 5: Solve for x
x = 184,306,103,548.46/490,216.62 - Step 6: Final answer
x = 375,968.70
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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.