Finding the Fourth Proportional to 2,078,145.20, 3,117,217.80 and 730,515.80
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Solution
The fourth proportional to 2,078,145.20, 3,117,217.80 and 730,515.80 is: 1,095,773.70
Step by Step Solution
- Step 1: Write the proportion equation
2,078,145.20 : 3,117,217.80 = 730,515.80 : x - Step 2: Convert to fraction form
2,078,145.20/3,117,217.80 = 730,515.80/x - Step 3: Cross multiply
2,078,145.20x = 3,117,217.80 × 730,515.80 - Step 4: Simplify right side
2,078,145.20x = 2,277,176,854,941.24 - Step 5: Solve for x
x = 2,277,176,854,941.24/2,078,145.20 - Step 6: Final answer
x = 1,095,773.70
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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.