Finding the Fourth Proportional to 744,317.06, 1,115,970.21 and 378,680
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Solution
The fourth proportional to 744,317.06, 1,115,970.21 and 378,680 is: 567,762.88
Step by Step Solution
- Step 1: Write the proportion equation
744,317.06 : 1,115,970.21 = 378,680 : x - Step 2: Convert to fraction form
744,317.06/1,115,970.21 = 378,680/x - Step 3: Cross multiply
744,317.06x = 1,115,970.21 × 378,680 - Step 4: Simplify right side
744,317.06x = 422,595,599,122.80 - Step 5: Solve for x
x = 422,595,599,122.80/744,317.06 - Step 6: Final answer
x = 567,762.88
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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.