Finding the Fourth Proportional to 1,126,729.74, 1,688,913.63 and 416,304.66
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Solution
The fourth proportional to 1,126,729.74, 1,688,913.63 and 416,304.66 is: 624,020.64
Step by Step Solution
- Step 1: Write the proportion equation
1,126,729.74 : 1,688,913.63 = 416,304.66 : x - Step 2: Convert to fraction form
1,126,729.74/1,688,913.63 = 416,304.66/x - Step 3: Cross multiply
1,126,729.74x = 1,688,913.63 × 416,304.66 - Step 4: Simplify right side
1,126,729.74x = 703,102,614,506.52 - Step 5: Solve for x
x = 703,102,614,506.52/1,126,729.74 - Step 6: Final answer
x = 624,020.64
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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.