Finding the Fourth Proportional to 831,733.08, 1,147,743.84 and 469,135.32
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Solution
The fourth proportional to 831,733.08, 1,147,743.84 and 469,135.32 is: 647,379.77
Step by Step Solution
- Step 1: Write the proportion equation
831,733.08 : 1,147,743.84 = 469,135.32 : x - Step 2: Convert to fraction form
831,733.08/1,147,743.84 = 469,135.32/x - Step 3: Cross multiply
831,733.08x = 1,147,743.84 × 469,135.32 - Step 4: Simplify right side
831,733.08x = 538,447,173,656.43 - Step 5: Solve for x
x = 538,447,173,656.43/831,733.08 - Step 6: Final answer
x = 647,379.77
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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.