Finding the Fourth Proportional to 1,180,310.40, 1,768,132.80 and 646,876.80
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Solution
The fourth proportional to 1,180,310.40, 1,768,132.80 and 646,876.80 is: 969,036.69
Step by Step Solution
- Step 1: Write the proportion equation
1,180,310.40 : 1,768,132.80 = 646,876.80 : x - Step 2: Convert to fraction form
1,180,310.40/1,768,132.80 = 646,876.80/x - Step 3: Cross multiply
1,180,310.40x = 1,768,132.80 × 646,876.80 - Step 4: Simplify right side
1,180,310.40x = 1,143,764,087,639.04 - Step 5: Solve for x
x = 1,143,764,087,639.04/1,180,310.40 - Step 6: Final answer
x = 969,036.69
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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.