Finding the Fourth Proportional to 748,710.53, 1,123,128.08 and 243,260.31
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Solution
The fourth proportional to 748,710.53, 1,123,128.08 and 243,260.31 is: 364,910.70
Step by Step Solution
- Step 1: Write the proportion equation
748,710.53 : 1,123,128.08 = 243,260.31 : x - Step 2: Convert to fraction form
748,710.53/1,123,128.08 = 243,260.31/x - Step 3: Cross multiply
748,710.53x = 1,123,128.08 × 243,260.31 - Step 4: Simplify right side
748,710.53x = 273,212,483,694.20 - Step 5: Solve for x
x = 273,212,483,694.20/748,710.53 - Step 6: Final answer
x = 364,910.70
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1.5x scale
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.