Finding the Fourth Proportional to 1,872,130.60, 2,808,195.90 and 1,853,468.20
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Solution
The fourth proportional to 1,872,130.60, 2,808,195.90 and 1,853,468.20 is: 2,780,202.30
Step by Step Solution
- Step 1: Write the proportion equation
1,872,130.60 : 2,808,195.90 = 1,853,468.20 : x - Step 2: Convert to fraction form
1,872,130.60/2,808,195.90 = 1,853,468.20/x - Step 3: Cross multiply
1,872,130.60x = 2,808,195.90 × 1,853,468.20 - Step 4: Simplify right side
1,872,130.60x = 5,204,901,800,020.38 - Step 5: Solve for x
x = 5,204,901,800,020.38/1,872,130.60 - Step 6: Final answer
x = 2,780,202.30
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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.