Finding the Fourth Proportional to 887,140.89, 1,330,709.99 and 354,786.75
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Solution
The fourth proportional to 887,140.89, 1,330,709.99 and 354,786.75 is: 532,179.59
Step by Step Solution
- Step 1: Write the proportion equation
887,140.89 : 1,330,709.99 = 354,786.75 : x - Step 2: Convert to fraction form
887,140.89/1,330,709.99 = 354,786.75/x - Step 3: Cross multiply
887,140.89x = 1,330,709.99 × 354,786.75 - Step 4: Simplify right side
887,140.89x = 472,118,270,770.70 - Step 5: Solve for x
x = 472,118,270,770.70/887,140.89 - Step 6: Final answer
x = 532,179.59
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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.