Finding the Fourth Proportional to 744,683.76, 1,027,668.06 and 405,154.44
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Solution
The fourth proportional to 744,683.76, 1,027,668.06 and 405,154.44 is: 559,115.56
Step by Step Solution
- Step 1: Write the proportion equation
744,683.76 : 1,027,668.06 = 405,154.44 : x - Step 2: Convert to fraction form
744,683.76/1,027,668.06 = 405,154.44/x - Step 3: Cross multiply
744,683.76x = 1,027,668.06 × 405,154.44 - Step 4: Simplify right side
744,683.76x = 416,364,277,355.19 - Step 5: Solve for x
x = 416,364,277,355.19/744,683.76 - Step 6: Final answer
x = 559,115.56
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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.