Finding the Fourth Proportional to 646,651.23, 892,378.94 and 374,876.67
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Solution
The fourth proportional to 646,651.23, 892,378.94 and 374,876.67 is: 517,329.95
Step by Step Solution
- Step 1: Write the proportion equation
646,651.23 : 892,378.94 = 374,876.67 : x - Step 2: Convert to fraction form
646,651.23/892,378.94 = 374,876.67/x - Step 3: Cross multiply
646,651.23x = 892,378.94 × 374,876.67 - Step 4: Simplify right side
646,651.23x = 334,532,046,877.37 - Step 5: Solve for x
x = 334,532,046,877.37/646,651.23 - Step 6: Final answer
x = 517,329.95
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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.