Finding the Fourth Proportional to 1,270,589.68, 1,905,480.35 and 417,464.70
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Solution
The fourth proportional to 1,270,589.68, 1,905,480.35 and 417,464.70 is: 626,064.26
Step by Step Solution
- Step 1: Write the proportion equation
1,270,589.68 : 1,905,480.35 = 417,464.70 : x - Step 2: Convert to fraction form
1,270,589.68/1,905,480.35 = 417,464.70/x - Step 3: Cross multiply
1,270,589.68x = 1,905,480.35 × 417,464.70 - Step 4: Simplify right side
1,270,589.68x = 795,470,782,668.65 - Step 5: Solve for x
x = 795,470,782,668.65/1,270,589.68 - Step 6: Final answer
x = 626,064.26
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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.