Finding the Fourth Proportional to 453,924.79, 680,887.18 and 138,378.96
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Solution
The fourth proportional to 453,924.79, 680,887.18 and 138,378.96 is: 207,568.44
Step by Step Solution
- Step 1: Write the proportion equation
453,924.79 : 680,887.18 = 138,378.96 : x - Step 2: Convert to fraction form
453,924.79/680,887.18 = 138,378.96/x - Step 3: Cross multiply
453,924.79x = 680,887.18 × 138,378.96 - Step 4: Simplify right side
453,924.79x = 94,220,459,845.73 - Step 5: Solve for x
x = 94,220,459,845.73/453,924.79 - Step 6: Final answer
x = 207,568.44
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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.