Finding the Fourth Proportional to 1,160,244.84, 1,598,154.66 and 820,128.36
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Solution
The fourth proportional to 1,160,244.84, 1,598,154.66 and 820,128.36 is: 1,129,668.42
Step by Step Solution
- Step 1: Write the proportion equation
1,160,244.84 : 1,598,154.66 = 820,128.36 : x - Step 2: Convert to fraction form
1,160,244.84/1,598,154.66 = 820,128.36/x - Step 3: Cross multiply
1,160,244.84x = 1,598,154.66 × 820,128.36 - Step 4: Simplify right side
1,160,244.84x = 1,310,691,960,332.16 - Step 5: Solve for x
x = 1,310,691,960,332.16/1,160,244.84 - Step 6: Final answer
x = 1,129,668.42
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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.