Finding the Fourth Proportional to 1,261,079.38, 1,740,331.52 and 688,150.99
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Solution
The fourth proportional to 1,261,079.38, 1,740,331.52 and 688,150.99 is: 949,671.27
Step by Step Solution
- Step 1: Write the proportion equation
1,261,079.38 : 1,740,331.52 = 688,150.99 : x - Step 2: Convert to fraction form
1,261,079.38/1,740,331.52 = 688,150.99/x - Step 3: Cross multiply
1,261,079.38x = 1,740,331.52 × 688,150.99 - Step 4: Simplify right side
1,261,079.38x = 1,197,610,858,416.20 - Step 5: Solve for x
x = 1,197,610,858,416.20/1,261,079.38 - Step 6: Final answer
x = 949,671.27
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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.