Finding the Fourth Proportional to 3,312,673.20, 4,966,385.40 and 1,816,765.20
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Solution
The fourth proportional to 3,312,673.20, 4,966,385.40 and 1,816,765.20 is: 2,723,708.50
Step by Step Solution
- Step 1: Write the proportion equation
3,312,673.20 : 4,966,385.40 = 1,816,765.20 : x - Step 2: Convert to fraction form
3,312,673.20/4,966,385.40 = 1,816,765.20/x - Step 3: Cross multiply
3,312,673.20x = 4,966,385.40 × 1,816,765.20 - Step 4: Simplify right side
3,312,673.20x = 9,022,756,164,508.08 - Step 5: Solve for x
x = 9,022,756,164,508.08/3,312,673.20 - Step 6: Final answer
x = 2,723,708.50
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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.