Finding the Fourth Proportional to 1,235,862.70, 1,853,794.05 and 437,170.30
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Solution
The fourth proportional to 1,235,862.70, 1,853,794.05 and 437,170.30 is: 655,755.45
Step by Step Solution
- Step 1: Write the proportion equation
1,235,862.70 : 1,853,794.05 = 437,170.30 : x - Step 2: Convert to fraction form
1,235,862.70/1,853,794.05 = 437,170.30/x - Step 3: Cross multiply
1,235,862.70x = 1,853,794.05 × 437,170.30 - Step 4: Simplify right side
1,235,862.70x = 810,423,700,976.72 - Step 5: Solve for x
x = 810,423,700,976.72/1,235,862.70 - Step 6: Final answer
x = 655,755.45
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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.