Finding the Fourth Proportional to 1,393,668.51, 1,923,525.09 and 909,392.91
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Solution
The fourth proportional to 1,393,668.51, 1,923,525.09 and 909,392.91 is: 1,255,133.53
Step by Step Solution
- Step 1: Write the proportion equation
1,393,668.51 : 1,923,525.09 = 909,392.91 : x - Step 2: Convert to fraction form
1,393,668.51/1,923,525.09 = 909,392.91/x - Step 3: Cross multiply
1,393,668.51x = 1,923,525.09 × 909,392.91 - Step 4: Simplify right side
1,393,668.51x = 1,749,240,079,053.11 - Step 5: Solve for x
x = 1,749,240,079,053.11/1,393,668.51 - Step 6: Final answer
x = 1,255,133.53
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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.