Finding the Fourth Proportional to 787,330.13, 1,181,170.17 and 288,694.13
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Solution
The fourth proportional to 787,330.13, 1,181,170.17 and 288,694.13 is: 433,105.35
Step by Step Solution
- Step 1: Write the proportion equation
787,330.13 : 1,181,170.17 = 288,694.13 : x - Step 2: Convert to fraction form
787,330.13/1,181,170.17 = 288,694.13/x - Step 3: Cross multiply
787,330.13x = 1,181,170.17 × 288,694.13 - Step 4: Simplify right side
787,330.13x = 340,996,888,704.25 - Step 5: Solve for x
x = 340,996,888,704.25/787,330.13 - Step 6: Final answer
x = 433,105.35
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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.