Finding the Fourth Proportional to 1,126,731.16, 1,688,915.76 and 416,306.08
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Solution
The fourth proportional to 1,126,731.16, 1,688,915.76 and 416,306.08 is: 624,022.77
Step by Step Solution
- Step 1: Write the proportion equation
1,126,731.16 : 1,688,915.76 = 416,306.08 : x - Step 2: Convert to fraction form
1,126,731.16/1,688,915.76 = 416,306.08/x - Step 3: Cross multiply
1,126,731.16x = 1,688,915.76 × 416,306.08 - Step 4: Simplify right side
1,126,731.16x = 703,105,899,495.82 - Step 5: Solve for x
x = 703,105,899,495.82/1,126,731.16 - Step 6: Final answer
x = 624,022.77
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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.