Finding the Fourth Proportional to 1,330,210.24, 1,995,503.28 and 431,350
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Solution
The fourth proportional to 1,330,210.24, 1,995,503.28 and 431,350 is: 647,085.94
Step by Step Solution
- Step 1: Write the proportion equation
1,330,210.24 : 1,995,503.28 = 431,350 : x - Step 2: Convert to fraction form
1,330,210.24/1,995,503.28 = 431,350/x - Step 3: Cross multiply
1,330,210.24x = 1,995,503.28 × 431,350 - Step 4: Simplify right side
1,330,210.24x = 860,760,339,828 - Step 5: Solve for x
x = 860,760,339,828/1,330,210.24 - Step 6: Final answer
x = 647,085.94
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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.