Finding the Fourth Proportional to 1,231,378.24, 1,699,285.36 and 687,522.36
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Solution
The fourth proportional to 1,231,378.24, 1,699,285.36 and 687,522.36 is: 948,771.58
Step by Step Solution
- Step 1: Write the proportion equation
1,231,378.24 : 1,699,285.36 = 687,522.36 : x - Step 2: Convert to fraction form
1,231,378.24/1,699,285.36 = 687,522.36/x - Step 3: Cross multiply
1,231,378.24x = 1,699,285.36 × 687,522.36 - Step 4: Simplify right side
1,231,378.24x = 1,168,296,681,020.65 - Step 5: Solve for x
x = 1,168,296,681,020.65/1,231,378.24 - Step 6: Final answer
x = 948,771.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.