Finding the Fourth Proportional to 646,685.37, 892,357.56 and 374,838.53
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Solution
The fourth proportional to 646,685.37, 892,357.56 and 374,838.53 is: 517,237.60
Step by Step Solution
- Step 1: Write the proportion equation
646,685.37 : 892,357.56 = 374,838.53 : x - Step 2: Convert to fraction form
646,685.37/892,357.56 = 374,838.53/x - Step 3: Cross multiply
646,685.37x = 892,357.56 × 374,838.53 - Step 4: Simplify right side
646,685.37x = 334,489,991,563.00 - Step 5: Solve for x
x = 334,489,991,563.00/646,685.37 - Step 6: Final answer
x = 517,237.60
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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.